Misc Fixes 3

- Fix about screen for better compatibility with VISTA;
- Better logo sizing in splash element;

platform/commonUI/dialog/res/templates/notification-message.html

@@ -9,17 +9,17 @@
                          ng-model="ngModel"
                          ng-show="ngModel.progressPerc !== undefined"></mct-include>
         </div>
-        <div class="c-overlay__button-bar">
-            <button ng-repeat="dialogOption in ngModel.options"
+    </div>
+    <div class="c-overlay__button-bar">
+        <button ng-repeat="dialogOption in ngModel.options"
                 class="c-button"
                 ng-click="dialogOption.callback()">
-                    {{dialogOption.label}}
-            </button>
-            <button class="c-button c-button--major"
+            {{dialogOption.label}}
+        </button>
+        <button class="c-button c-button--major"
                 ng-if="ngModel.primaryOption"
                 ng-click="ngModel.primaryOption.callback()">
-                    {{ngModel.primaryOption.label}}
-            </button>
-        </div>
+            {{ngModel.primaryOption.label}}
+        </button>
     </div>
 </div>

platform/commonUI/edit/src/actions/PropertiesDialog.js

@@ -49,7 +49,7 @@ define(
                     name: "Properties",
                     rows: this.properties.map(function (property, index) {
                         // Property definition is same as form row definition
-                        var row = Object.create(property.getDefinition());
+                        var row = JSON.parse(JSON.stringify(property.getDefinition()));
                         row.key = index;
                         return row;
                     }).filter(function (row) {

platform/commonUI/edit/src/creation/CreateWizard.js

@@ -66,7 +66,7 @@ define(
                 name: "Properties",
                 rows: this.properties.map(function (property, index) {
                     // Property definition is same as form row definition
-                    var row = Object.create(property.getDefinition());
+                    var row = JSON.parse(JSON.stringify(property.getDefinition()));
 
                     // Use index as the key into the formValue;
                     // this correlates to the indexing provided by

platform/commonUI/edit/src/services/TransactionManager.js

@@ -77,14 +77,19 @@ define([], function () {
                 return promiseFn().then(nextFn);
             };
         }
-
-        if (!this.isScheduled(id)) {
-            this.clearTransactionFns[id] =
-                this.transactionService.addToTransaction(
-                    chain(onCommit, release),
-                    chain(onCancel, release)
-                );
+        /**
+         * Clear any existing persistence calls for object with given ID. This ensures only the most recent persistence
+         * call is executed. This should prevent stale objects being persisted and overwriting fresh ones.
+         */
+        if (this.isScheduled(id)) {
+            this.clearTransactionsFor(id);
         }
+
+        this.clearTransactionFns[id] =
+            this.transactionService.addToTransaction(
+                chain(onCommit, release),
+                chain(onCancel, release)
+            );
     };
 
     /**

platform/commonUI/edit/test/services/TransactionManagerSpec.js

@@ -93,24 +93,33 @@ define(
                     expect(mockOnCancel).toHaveBeenCalled();
                 });
 
-                it("ignores subsequent calls for the same object", function () {
-                    manager.addToTransaction(
-                        testId,
-                        jasmine.createSpy(),
-                        jasmine.createSpy()
-                    );
-                    expect(mockTransactionService.addToTransaction.calls.count())
-                        .toEqual(1);
-                });
+                describe("Adds callbacks to transaction", function () {
+                    beforeEach(function () {
+                        spyOn(manager, 'clearTransactionsFor');
+                        manager.clearTransactionsFor.and.callThrough();
+                    });
 
-                it("accepts subsequent calls for other objects", function () {
-                    manager.addToTransaction(
-                        'other-id',
-                        jasmine.createSpy(),
-                        jasmine.createSpy()
-                    );
-                    expect(mockTransactionService.addToTransaction.calls.count())
-                        .toEqual(2);
+                    it("and clears pending calls if same object", function () {
+                        manager.addToTransaction(
+                            testId,
+                            jasmine.createSpy(),
+                            jasmine.createSpy()
+                        );
+                        expect(manager.clearTransactionsFor).toHaveBeenCalledWith(testId);
+                    });
+
+                    it("and does not clear pending calls if different object", function () {
+                        manager.addToTransaction(
+                            'other-id',
+                            jasmine.createSpy(),
+                            jasmine.createSpy()
+                        );
+                        expect(manager.clearTransactionsFor).not.toHaveBeenCalled();
+                    });
+
+                    afterEach(function () {
+                        expect(mockTransactionService.addToTransaction.calls.count()).toEqual(2);
+                    });
                 });
 
                 it("does not remove callbacks from the transaction", function () {

platform/commonUI/general/src/directives/MCTSelectable.js

@@ -54,6 +54,7 @@ define(
                     if (isDestroyed) {
                         return;
                     }
+
                     var removeSelectable = openmct.selection.selectable(
                         element[0],
                         scope.$eval(attrs.mctSelectable),

platform/core/src/runs/TransactingMutationListener.js

@@ -43,23 +43,10 @@ define([], function () {
         var mutationTopic = topic('mutation');
         mutationTopic.listen(function (domainObject) {
             var persistence = domainObject.getCapability('persistence');
-            var wasActive = transactionService.isActive();
             cacheService.put(domainObject.getId(), domainObject.getModel());
 
             if (hasChanged(domainObject)) {
-
-                if (!wasActive) {
-                    transactionService.startTransaction();
-                }
-
-                transactionService.addToTransaction(
-                    persistence.persist.bind(persistence),
-                    persistence.refresh.bind(persistence)
-                );
-
-                if (!wasActive) {
-                    transactionService.commit();
-                }
+                persistence.persist();
             }
         });
     }

platform/core/test/runs/TransactingMutationListenerSpec.js

@@ -24,22 +24,27 @@ define(
     ["../../src/runs/TransactingMutationListener"],
     function (TransactingMutationListener) {
 
-        xdescribe("TransactingMutationListener", function () {
+        describe("TransactingMutationListener", function () {
             var mockTopic,
                 mockMutationTopic,
+                mockCacheService,
                 mockTransactionService,
                 mockDomainObject,
+                mockModel,
                 mockPersistence;
 
             beforeEach(function () {
                 mockTopic = jasmine.createSpy('topic');
                 mockMutationTopic =
                     jasmine.createSpyObj('mutation', ['listen']);
+                mockCacheService =
+                    jasmine.createSpyObj('cacheService', [
+                        'put'
+                    ]);
                 mockTransactionService =
                     jasmine.createSpyObj('transactionService', [
                         'isActive',
                         'startTransaction',
-                        'addToTransaction',
                         'commit'
                     ]);
                 mockDomainObject = jasmine.createSpyObj(
@@ -52,18 +57,24 @@ define(
                 );
 
                 mockTopic.and.callFake(function (t) {
-                    return (t === 'mutation') && mockMutationTopic;
+                    expect(t).toBe('mutation');
+                    return mockMutationTopic;
                 });
 
+                mockDomainObject.getId.and.returnValue('mockId');
                 mockDomainObject.getCapability.and.callFake(function (c) {
-                    return (c === 'persistence') && mockPersistence;
+                    expect(c).toBe('persistence');
+                    return mockPersistence;
                 });
+                mockModel = {};
+                mockDomainObject.getModel.and.returnValue(mockModel);
 
                 mockPersistence.persisted.and.returnValue(true);
 
                 return new TransactingMutationListener(
                     mockTopic,
-                    mockTransactionService
+                    mockTransactionService,
+                    mockCacheService
                 );
             });
 
@@ -72,48 +83,27 @@ define(
                     .toHaveBeenCalledWith(jasmine.any(Function));
             });
 
-            [false, true].forEach(function (isActive) {
-                var verb = isActive ? "is" : "isn't";
+            it("calls persist if the model has changed", function () {
+                mockModel.persisted = Date.now();
 
-                function onlyWhenInactive(expectation) {
-                    return isActive ? expectation.not : expectation;
-                }
+                //Mark the model dirty by setting the mutated date later than the last persisted date.
+                mockModel.modified = mockModel.persisted + 1;
 
-                describe("when a transaction " + verb + " active", function () {
-                    var innerVerb = isActive ? "does" : "doesn't";
+                mockMutationTopic.listen.calls.mostRecent()
+                    .args[0](mockDomainObject);
 
-                    beforeEach(function () {
-                        mockTransactionService.isActive.and.returnValue(isActive);
-                    });
+                expect(mockPersistence.persist).toHaveBeenCalled();
+            });
 
-                    describe("and mutation occurs", function () {
-                        beforeEach(function () {
-                            mockMutationTopic.listen.calls.mostRecent()
-                                .args[0](mockDomainObject);
-                        });
+            it("does not call persist if the model has not changed", function () {
+                mockModel.persisted = Date.now();
 
+                mockModel.modified = mockModel.persisted;
 
-                        it(innerVerb + " start a new transaction", function () {
-                            onlyWhenInactive(
-                                expect(mockTransactionService.startTransaction)
-                            ).toHaveBeenCalled();
-                        });
+                mockMutationTopic.listen.calls.mostRecent()
+                    .args[0](mockDomainObject);
 
-                        it("adds to the active transaction", function () {
-                            expect(mockTransactionService.addToTransaction)
-                                .toHaveBeenCalledWith(
-                                    jasmine.any(Function),
-                                    jasmine.any(Function)
-                                );
-                        });
-
-                        it(innerVerb + " immediately commit", function () {
-                            onlyWhenInactive(
-                                expect(mockTransactionService.commit)
-                            ).toHaveBeenCalled();
-                        });
-                    });
-                });
+                expect(mockPersistence.persist).not.toHaveBeenCalled();
             });
         });
     }

src/adapter/actions/LegacyContextMenuAction.js

@@ -33,20 +33,25 @@ export default class LegacyContextMenuAction {
     }
 
     invoke(objectPath) {
-        let context = {
-            category: 'contextual',
-            domainObject: this.openmct.legacyObject(objectPath)
-        }
-        let legacyAction = new this.LegacyAction(context);
+        this.openmct.objects.getRoot().then((root) => {
+            let pathWithRoot = objectPath.slice();
+            pathWithRoot.push(root);
 
-        if (!legacyAction.getMetadata) {
-            let metadata = Object.create(this.LegacyAction.definition);
-            metadata.context = context;
-            legacyAction.getMetadata = function () {
-                return metadata;
-            }.bind(legacyAction);
-        }
-        legacyAction.perform();
+            let context = {
+                category: 'contextual',
+                domainObject: this.openmct.legacyObject(pathWithRoot)
+            }
+            let legacyAction = new this.LegacyAction(context);
+
+            if (!legacyAction.getMetadata) {
+                let metadata = Object.create(this.LegacyAction.definition);
+                metadata.context = context;
+                legacyAction.getMetadata = function () {
+                    return metadata;
+                }.bind(legacyAction);
+            }
+            legacyAction.perform();
+        });
     }
 
     appliesTo(objectPath) {

src/adapter/services/LegacyObjectAPIInterceptor.js

@@ -57,8 +57,10 @@ define([
         }.bind(this);
 
         handleLegacyMutation = function (legacyObject) {
-            var newStyleObject = utils.toNewFormat(legacyObject.getModel(), legacyObject.getId());
-            this.eventEmitter.emit(newStyleObject.identifier.key + ":*", newStyleObject);
+            var newStyleObject = utils.toNewFormat(legacyObject.getModel(), legacyObject.getId()),
+                keystring = utils.makeKeyString(newStyleObject.identifier);
+
+            this.eventEmitter.emit(keystring + ":*", newStyleObject);
             this.eventEmitter.emit('mutation', newStyleObject);
         }.bind(this);
 

src/adapter/views/LegacyViewProvider.js

@@ -48,12 +48,22 @@ define([
                 let scope = $rootScope.$new();
                 let legacyObject = convertToLegacyObject(domainObject);
                 let isDestroyed = false;
+                let unlistenToStatus;
                 scope.domainObject = legacyObject;
                 scope.model = legacyObject.getModel();
 
 
                 return {
                     show: function (container) {
+                        let statusCapability = legacyObject.getCapability('status');
+                        unlistenToStatus = statusCapability.listen((newStatus) => {
+                            container.classList.remove('s-status-timeconductor-unsynced');
+
+                            if (newStatus.includes('timeconductor-unsynced')) {
+                                container.classList.add('s-status-timeconductor-unsynced');
+                            }
+                        });
+
                         // TODO: implement "gestures" support ?
                         let uses = legacyView.uses || [];
                         let promises = [];
@@ -94,6 +104,7 @@ define([
                     },
                     destroy: function () {
                         scope.$destroy();
+                        unlistenToStatus();
                     }
                 }
             },

src/adapter/views/TypeInspectorViewProvider.js

@@ -25,14 +25,20 @@ define([
             cssClass: representation.cssClass,
             description: representation.description,
             canView: function (selection) {
-                if (!selection[0] || !selection[0].context.item) {
+                if (selection.length === 0 || selection[0].length === 0) {
                     return false;
                 }
-                let domainObject = selection[0].context.item;
-                return domainObject.type === typeDefinition.key;
+
+                let selectionContext = selection[0][0].context;
+
+                if (!selectionContext.item) {
+                    return false;
+                }
+
+                return selectionContext.item.type === typeDefinition.key;
             },
             view: function (selection) {
-                let domainObject = selection[0].context.item;
+                let domainObject = selection[0][0].context.item;
                 let $rootScope = openmct.$injector.get('$rootScope');
                 let templateLinker = openmct.$injector.get('templateLinker');
                 let scope = $rootScope.$new();

src/api/Editor.js

@@ -28,11 +28,6 @@ export default class Editor extends EventEmitter {
         super();
         this.editing = false;
         this.openmct = openmct;
-        document.addEventListener('drop', (event) => {
-            if (!this.isEditing()) {
-                this.edit();
-            }
-        }, {capture: true});
     }
 
     /**
@@ -79,9 +74,11 @@ export default class Editor extends EventEmitter {
      * @private
      */
     cancel() {
-        this.getTransactionService().cancel();
+        let cancelPromise = this.getTransactionService().cancel();
         this.editing = false;
         this.emit('isEditing', false);
+
+        return cancelPromise;
     }
 
     /**

src/api/composition/CompositionCollection.js

@@ -25,7 +25,6 @@ define([
 ], function (
     _
 ) {
-
     /**
      * A CompositionCollection represents the list of domain objects contained
      * by another domain object. It provides methods for loading this
@@ -63,7 +62,6 @@ define([
         this.onProviderRemove = this.onProviderRemove.bind(this);
     }
 
-
     /**
      * Listen for changes to this composition.  Supports 'add', 'remove', and
      * 'load' events.
@@ -76,7 +74,11 @@ define([
         if (!this.listeners[event]) {
             throw new Error('Event not supported by composition: ' + event);
         }
-
+        if (!this.mutationListener) {
+            this.mutationListener = this.publicAPI.objects.observe(this.domainObject, '*', (newDomainObject) => {
+                this.domainObject = newDomainObject;
+            })
+        }
         if (this.provider.on && this.provider.off) {
             if (event === 'add') {
                 this.provider.on(
@@ -132,6 +134,10 @@ define([
 
         this.listeners[event].splice(index, 1);
         if (this.listeners[event].length === 0) {
+            if (this.mutationListener) {
+                this.mutationListener();
+                delete this.mutationListener;
+            }
             // Remove provider listener if this is the last callback to
             // be removed.
             if (this.provider.off && this.provider.on) {

src/api/objects/MutableObject.js

@@ -21,8 +21,10 @@
  *****************************************************************************/
 
 define([
+    './object-utils.js',
     'lodash'
 ], function (
+    utils,
     _
 ) {
     var ANY_OBJECT_EVENT = "mutation";
@@ -41,7 +43,9 @@ define([
     }
 
     function qualifiedEventName(object, eventName) {
-        return [object.identifier.key, eventName].join(':');
+        var keystring = utils.makeKeyString(object.identifier);
+
+        return [keystring, eventName].join(':');
     }
 
     MutableObject.prototype.stopListening = function () {

src/api/overlays/components/OverlayComponent.vue

@@ -92,6 +92,7 @@
             display: flex;
             flex-direction: column;
             flex: 1 1 auto;
+            height: 0; // Chrome 73 overflow bug fix
             overflow: auto;
             padding-right: $interiorMargin; // fend off scroll bar
         }

src/plugins/displayLayout/DisplayLayoutToolbar.js

@@ -28,11 +28,17 @@ define([], function () {
             key: "layout",
             description: "A toolbar for objects inside a display layout.",
             forSelection: function (selection) {
-                // Apply the layout toolbar if the selected object
-                // is inside a layout, or the main layout is selected.
-                return (selection &&
-                    ((selection[1] && selection[1].context.item && selection[1].context.item.type === 'layout') ||
-                        (selection[0].context.item && selection[0].context.item.type === 'layout')));
+                if (!selection || selection.length === 0) {
+                    return false;
+                }
+
+                let selectionPath = selection[0];
+                let selectedObject = selectionPath[0];
+                let selectedParent = selectionPath[1];
+
+                // Apply the layout toolbar if the selected object is inside a layout, or the main layout is selected.
+                return (selectedParent && selectedParent.context.item && selectedParent.context.item.type === 'layout') ||
+                    (selectedObject.context.item && selectedObject.context.item.type === 'layout');
             },
             toolbar: function (selection) {
                 const DIALOG_FORM = {
@@ -73,190 +79,72 @@ define([], function () {
                     return openmct.$injector.get('dialogService').getUserInput(form, {});
                 }
 
-                function getPath() {
-                    return `configuration.items[${selection[0].context.index}]`;
+                function getPath(selectionPath) {
+                    return `configuration.items[${selectionPath[0].context.index}]`;
                 }
 
-                let selectedParent = selection[1] && selection[1].context.item,
-                    selectedObject = selection[0].context.item,
-                    layoutItem = selection[0].context.layoutItem,
-                    toolbar = [];
-
-                if (selectedObject && selectedObject.type === 'layout') {
-                    toolbar.push({
-                        control: "menu",
-                        domainObject: selectedObject,
-                        method: function (option) {
-                            let name = option.name.toLowerCase();
-                            let form = DIALOG_FORM[name];
-                            if (form) {
-                                getUserInput(form)
-                                    .then(element => selection[0].context.addElement(name, element));
-                            } else {
-                                selection[0].context.addElement(name);
-                            }
-                        },
-                        key: "add",
-                        icon: "icon-plus",
-                        label: "Add",
-                        options: [
-                            {
-                                "name": "Box",
-                                "class": "icon-box-round-corners"
-                            },
-                            {
-                                "name": "Line",
-                                "class": "icon-line-horz"
-                            },
-                            {
-                                "name": "Text",
-                                "class": "icon-font"
-                            },
-                            {
-                                "name": "Image",
-                                "class": "icon-image"
-                            }
-                        ]
+                function getAllTypes(selection) {
+                    return selection.filter(selectionPath => {
+                        let type = selectionPath[0].context.layoutItem.type;
+                        return type === 'text-view' ||
+                            type === 'telemetry-view' ||
+                            type === 'box-view' ||
+                            type === 'image-view' ||
+                            type === 'line-view' ||
+                            type === 'subobject-view';
                     });
                 }
 
-                if (!layoutItem) {
-                    return toolbar;
-                }
-
-                let separator = {
-                    control: "separator"
-                };
-                let remove = {
-                    control: "button",
-                    domainObject: selectedParent,
-                    icon: "icon-trash",
-                    title: "Delete the selected object",
-                    method: function () {
-                        let removeItem = selection[1].context.removeItem;
-                        let prompt = openmct.overlays.dialog({
-                            iconClass: 'alert',
-                            message: `Warning! This action will remove this item from the Display Layout. Do you want to continue?`,
-                            buttons: [
+                function getAddButton(selection, selectionPath) {
+                    if (selection.length === 1) {
+                        selectionPath = selectionPath || selection[0];
+                        return {
+                            control: "menu",
+                            domainObject: selectionPath[0].context.item,
+                            method: function (option) {
+                                let name = option.name.toLowerCase();
+                                let form = DIALOG_FORM[name];
+                                if (form) {
+                                    getUserInput(form)
+                                        .then(element => selectionPath[0].context.addElement(name, element));
+                                } else {
+                                    selectionPath[0].context.addElement(name);
+                                }
+                            },
+                            key: "add",
+                            icon: "icon-plus",
+                            label: "Add",
+                            options: [
                                 {
-                                    label: 'Ok',
-                                    emphasis: 'true',
-                                    callback: function () {
-                                        removeItem(layoutItem, selection[0].context.index);
-                                        prompt.dismiss();
-                                    }
+                                    "name": "Box",
+                                    "class": "icon-box-round-corners"
                                 },
                                 {
-                                    label: 'Cancel',
-                                    callback: function () {
-                                        prompt.dismiss();
-                                    }
+                                    "name": "Line",
+                                    "class": "icon-line-horz"
+                                },
+                                {
+                                    "name": "Text",
+                                    "class": "icon-font"
+                                },
+                                {
+                                    "name": "Image",
+                                    "class": "icon-image"
                                 }
                             ]
-                        });
+                        };
                     }
-                };
-                let stackOrder = {
-                    control: "menu",
-                    domainObject: selectedParent,
-                    icon: "icon-layers",
-                    title: "Move the selected object above or below other objects",
-                    options: [
-                        {
-                            name: "Move to Top",
-                            value: "top",
-                            class: "icon-arrow-double-up"
-                        },
-                        {
-                            name: "Move Up",
-                            value: "up",
-                            class: "icon-arrow-up"
-                        },
-                        {
-                            name: "Move Down",
-                            value: "down",
-                            class: "icon-arrow-down"
-                        },
-                        {
-                            name: "Move to Bottom",
-                            value: "bottom",
-                            class: "icon-arrow-double-down"
-                        }
-                    ],
-                    method: function (option) {
-                        selection[1].context.orderItem(option.value, selection[0].context.index);
-                    }
-                };
-                let useGrid = {
-                    control: "toggle-button",
-                    domainObject: selectedParent,
-                    property: function () {
-                        return getPath() + ".useGrid";
-                    },
-                    options: [
-                        {
-                            value: false,
-                            icon: "icon-grid-snap-to",
-                            title: "Grid snapping enabled"
-                        },
-                        {
-                            value: true,
-                            icon: "icon-grid-snap-no",
-                            title: "Grid snapping disabled"
-                        }
-                    ]
-                };
-                let x = {
-                    control: "input",
-                    type: "number",
-                    domainObject: selectedParent,
-                    property: function () {
-                        return getPath() + ".x";
-                    },
-                    label: "X:",
-                    title: "X position"
-                },
-                y = {
-                    control: "input",
-                    type: "number",
-                    domainObject: selectedParent,
-                    property: function () {
-                        return getPath() + ".y";
-                    },
-                    label: "Y:",
-                    title: "Y position",
-                },
-                width = {
-                    control: 'input',
-                    type: 'number',
-                    domainObject: selectedParent,
-                    property: function () {
-                        return getPath() + ".width";
-                    },
-                    label: 'W:',
-                    title: 'Resize object width'
-                },
-                height = {
-                    control: 'input',
-                    type: 'number',
-                    domainObject: selectedParent,
-                    property: function () {
-                        return getPath() + ".height";
-                    },
-                    label: 'H:',
-                    title: 'Resize object height'
-                };
+                }
 
-                if (layoutItem.type === 'subobject-view') {
-                    if (toolbar.length > 0) {
-                        toolbar.push(separator);
-                    }
-
-                    toolbar.push({
+                function getToggleFrameButton(selectedParent, selection) {
+                    return {
                         control: "toggle-button",
                         domainObject: selectedParent,
-                        property: function () {
-                            return getPath() + ".hasFrame";
+                        applicableSelectedItems: selection.filter(selectionPath => 
+                            selectionPath[0].context.layoutItem.type === 'subobject-view'
+                        ),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath) + ".hasFrame";
                         },
                         options: [
                             {
@@ -270,52 +158,186 @@ define([], function () {
                                 title: "Frame hidden"
                             }
                         ]
-                    });
-                    toolbar.push(separator);
-                    toolbar.push(stackOrder);
-                    toolbar.push(x);
-                    toolbar.push(y);
-                    toolbar.push(width);
-                    toolbar.push(height);
-                    toolbar.push(useGrid);
-                    toolbar.push(separator);
-                    toolbar.push(remove);
-                } else {
+                    };
+                }
+
+                function getRemoveButton(selectedParent, selectionPath, selection) {
+                    return {
+                        control: "button",
+                        domainObject: selectedParent,
+                        icon: "icon-trash",
+                        title: "Delete the selected object",
+                        method: function () {
+                            let removeItem = selectionPath[1].context.removeItem;
+                            let prompt = openmct.overlays.dialog({
+                                iconClass: 'alert',
+                                message: `Warning! This action will remove this item from the Display Layout. Do you want to continue?`,
+                                buttons: [
+                                    {
+                                        label: 'Ok',
+                                        emphasis: 'true',
+                                        callback: function () {
+                                            removeItem(getAllTypes(selection));
+                                            prompt.dismiss();
+                                        }
+                                    },
+                                    {
+                                        label: 'Cancel',
+                                        callback: function () {
+                                            prompt.dismiss();
+                                        }
+                                    }
+                                ]
+                            });
+                        }
+                    };
+                }
+
+                function getStackOrder(selectedParent, selectionPath) {
+                    return {
+                        control: "menu",
+                        domainObject: selectedParent,
+                        icon: "icon-layers",
+                        title: "Move the selected object above or below other objects",
+                        options: [
+                            {
+                                name: "Move to Top",
+                                value: "top",
+                                class: "icon-arrow-double-up"
+                            },
+                            {
+                                name: "Move Up",
+                                value: "up",
+                                class: "icon-arrow-up"
+                            },
+                            {
+                                name: "Move Down",
+                                value: "down",
+                                class: "icon-arrow-down"
+                            },
+                            {
+                                name: "Move to Bottom",
+                                value: "bottom",
+                                class: "icon-arrow-double-down"
+                            }
+                        ],
+                        method: function (option) {
+                            selectionPath[1].context.orderItem(option.value, getAllTypes(selection));
+                        }
+                    };
+                }
+
+                function getXInput(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: "input",
+                            type: "number",
+                            domainObject: selectedParent,
+                            applicableSelectedItems: getAllTypes(selection),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".x";
+                            },
+                            label: "X:",
+                            title: "X position"
+                        };
+                    }
+                }
+
+                function getYInput(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: "input",
+                            type: "number",
+                            domainObject: selectedParent,
+                            applicableSelectedItems: getAllTypes(selection),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".y";
+                            },
+                            label: "Y:",
+                            title: "Y position",
+                        };
+                    }
+                }
+
+                function getWidthInput(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: 'input',
+                            type: 'number',
+                            domainObject: selectedParent,
+                            applicableSelectedItems: getAllTypes(selection),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".width";
+                            },
+                            label: 'W:',
+                            title: 'Resize object width'
+                        };
+                    }
+                }
+
+                function getHeightInput(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: 'input',
+                            type: 'number',
+                            domainObject: selectedParent,
+                            applicableSelectedItems: getAllTypes(selection),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".height";
+                            },
+                            label: 'H:',
+                            title: 'Resize object height'
+                        };
+                    }
+                }
+
+                function getX2Input(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: "input",
+                            type: "number",
+                            domainObject: selectedParent,
+                            applicableSelectedItems: selection.filter(selectionPath => {
+                                return selectionPath[0].context.layoutItem.type === 'line-view';
+                            }),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".x2";
+                            },
+                            label: "X2:",
+                            title: "X2 position"
+                        };
+                    }
+                }
+
+                function getY2Input(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: "input",
+                            type: "number",
+                            domainObject: selectedParent,
+                            applicableSelectedItems: selection.filter(selectionPath => {
+                                return selectionPath[0].context.layoutItem.type === 'line-view';
+                            }),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".y2";
+                            },
+                            label: "Y2:",
+                            title: "Y2 position",
+                        };
+                    }
+                }
+
+                function getTextSizeMenu(selectedParent, selection) {
                     const TEXT_SIZE = [8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 24, 30, 36, 48, 72, 96, 128];
-                    let fill = {
-                        control: "color-picker",
-                        domainObject: selectedParent,
-                        property: function () {
-                            return getPath() + ".fill";
-                        },
-                        icon: "icon-paint-bucket",
-                        title: "Set fill color"
-                    },
-                    stroke = {
-                        control: "color-picker",
-                        domainObject: selectedParent,
-                        property: function () {
-                            return getPath() + ".stroke";
-                        },
-                        icon: "icon-line-horz",
-                        title: "Set border color"
-                    },
-                    color = {
-                        control: "color-picker",
-                        domainObject: selectedParent,
-                        property: function () {
-                            return getPath() + ".color";
-                        },
-                        icon: "icon-font",
-                        mandatory: true,
-                        title: "Set text color",
-                        preventNone: true
-                    },
-                    size = {
+                    return {
                         control: "select-menu",
                         domainObject: selectedParent,
-                        property: function () {
-                            return getPath() + ".size";
+                        applicableSelectedItems: selection.filter(selectionPath => {
+                            let type = selectionPath[0].context.layoutItem.type;
+                            return type === 'text-view' || type === 'telemetry-view';
+                        }),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath) + ".size";
                         },
                         title: "Set text size",
                         options: TEXT_SIZE.map(size => {
@@ -324,13 +346,128 @@ define([], function () {
                             };
                         })
                     };
+                }
 
-                    if (layoutItem.type === 'telemetry-view') {
-                        let displayMode = {
+                function getFillMenu(selectedParent, selection) {
+                    return {
+                        control: "color-picker",
+                        domainObject: selectedParent,
+                        applicableSelectedItems: selection.filter(selectionPath => {
+                            let type = selectionPath[0].context.layoutItem.type;
+                            return type === 'text-view' ||
+                                type === 'telemetry-view' ||
+                                type === 'box-view';
+                        }),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath) + ".fill";
+                        },
+                        icon: "icon-paint-bucket",
+                        title: "Set fill color"
+                    };
+                }
+
+                function getStrokeMenu(selectedParent, selection) {
+                    return {
+                        control: "color-picker",
+                        domainObject: selectedParent,
+                        applicableSelectedItems: selection.filter(selectionPath => {
+                            let type = selectionPath[0].context.layoutItem.type;
+                            return type === 'text-view' ||
+                                type === 'telemetry-view' ||
+                                type === 'box-view' ||
+                                type === 'image-view' ||
+                                type === 'line-view';
+                        }),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath) + ".stroke";
+                        },
+                        icon: "icon-line-horz",
+                        title: "Set border color"
+                    };
+                }
+
+                function getTextColorMenu(selectedParent, selection) {
+                    return {
+                        control: "color-picker",
+                        domainObject: selectedParent,
+                        applicableSelectedItems: selection.filter(selectionPath => {
+                            let type = selectionPath[0].context.layoutItem.type;
+                            return type === 'text-view' || type === 'telemetry-view';
+                        }),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath) + ".color";
+                        },
+                        icon: "icon-font",
+                        mandatory: true,
+                        title: "Set text color",
+                        preventNone: true
+                    };
+                }
+
+                function getURLButton(selectedParent, selection) {
+                    return {
+                        control: "button",
+                        domainObject: selectedParent,
+                        applicableSelectedItems: selection.filter(selectionPath => {
+                            return selectionPath[0].context.layoutItem.type === 'image-view';
+                        }),
+                        property: function (selectionPath) {
+                            return getPath(selectionPath);
+                        },
+                        icon: "icon-image",
+                        title: "Edit image properties",
+                        dialog: DIALOG_FORM['image']
+                    };
+                }
+
+                function getTextButton(selectedParent, selection) {
+                        return {
+                            control: "button",
+                            domainObject: selectedParent,
+                            applicableSelectedItems: selection.filter(selectionPath => {
+                                return selectionPath[0].context.layoutItem.type === 'text-view';
+                            }),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath);
+                            },
+                            icon: "icon-gear",
+                            title: "Edit text properties",
+                            dialog: DIALOG_FORM['text']
+                        };
+                }
+
+                function getTelemetryValueMenu(selectionPath, selection) {
+                    if (selection.length === 1) {
+                        return {
+                            control: "select-menu",
+                            domainObject: selectionPath[1].context.item,
+                            applicableSelectedItems: selection.filter(selectionPath => {
+                                return selectionPath[0].context.layoutItem.type === 'telemetry-view';
+                            }),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".value";
+                            },
+                            title: "Set value",
+                            options: openmct.telemetry.getMetadata(selectionPath[0].context.item).values().map(value => {
+                                return {
+                                    name: value.name,
+                                    value: value.key
+                                }
+                            })
+                        };
+                    }
+                }
+
+                function getDisplayModeMenu(selectedParent, selection) {
+                    if (selection.length === 1) {
+                        return {
                             control: "select-menu",
                             domainObject: selectedParent,
-                            property: function () {
-                                return getPath() + ".displayMode";
+                            applicableSelectedItems: selection.filter(selectionPath => {
+                                return selectionPath[0].context.layoutItem.type === 'telemetry-view';
+                            }),
+                            property: function (selectionPath) {
+                                return getPath(selectionPath) + ".displayMode";
                             },
                             title: "Set display mode",
                             options: [
@@ -347,146 +484,196 @@ define([], function () {
                                     value: "value"
                                 }
                             ]
-                        },
-                        value = {
-                            control: "select-menu",
-                            domainObject: selectedParent,
-                            property: function () {
-                                return getPath() + ".value";
-                            },
-                            title: "Set value",
-                            options: openmct.telemetry.getMetadata(selectedObject).values().map(value => {
-                                return {
-                                    name: value.name,
-                                    value: value.key
-                                }
-                            })
                         };
-                        toolbar = [
-                            displayMode,
-                            separator,
-                            value,
-                            separator,
-                            fill,
-                            stroke,
-                            color,
-                            separator,
-                            size,
-                            separator,
-                            stackOrder,
-                            x,
-                            y,
-                            height,
-                            width,
-                            useGrid,
-                            separator,
-                            remove
-                        ];
-                    } else if (layoutItem.type === 'text-view') {
-                        let text = {
-                            control: "button",
-                            domainObject: selectedParent,
-                            property: function () {
-                                return getPath();
-                            },
-                            icon: "icon-gear",
-                            title: "Edit text properties",
-                            dialog: DIALOG_FORM['text']
-                        };
-                        toolbar = [
-                            fill,
-                            stroke,
-                            separator,
-                            color,
-                            size,
-                            separator,
-                            stackOrder,
-                            x,
-                            y,
-                            height,
-                            width,
-                            useGrid,
-                            separator,
-                            text,
-                            separator,
-                            remove
-                        ];
-                    } else if (layoutItem.type === 'box-view') {
-                        toolbar = [
-                            fill,
-                            stroke,
-                            separator,
-                            stackOrder,
-                            x,
-                            y,
-                            height,
-                            width,
-                            useGrid,
-                            separator,
-                            remove
-                        ];
-                    } else if (layoutItem.type === 'image-view') {
-                        let url = {
-                            control: "button",
-                            domainObject: selectedParent,
-                            property: function () {
-                                return getPath();
-                            },
-                            icon: "icon-image",
-                            title: "Edit image properties",
-                            dialog: DIALOG_FORM['image']
-                        };
-                        toolbar = [
-                            stroke,
-                            separator,
-                            stackOrder,
-                            x,
-                            y,
-                            height,
-                            width,
-                            useGrid,
-                            separator,
-                            url,
-                            separator,
-                            remove
-                        ];
-                    } else if (layoutItem.type === 'line-view') {
-                        let x2 = {
-                            control: "input",
-                            type: "number",
-                            domainObject: selectedParent,
-                            property: function () {
-                                return getPath() + ".x2";
-                            },
-                            label: "X2:",
-                            title: "X2 position"
-                        },
-                        y2 = {
-                            control: "input",
-                            type: "number",
-                            domainObject: selectedParent,
-                            property: function () {
-                                return getPath() + ".y2";
-                            },
-                            label: "Y2:",
-                            title: "Y2 position",
-                        };
-                        toolbar = [
-                            stroke,
-                            separator,
-                            stackOrder,
-                            x,
-                            y,
-                            x2,
-                            y2,
-                            useGrid,
-                            separator,
-                            remove
-                        ];
                     }
                 }
 
-                return toolbar;
+                function getSeparator() {
+                    return {
+                        control: "separator"
+                    };
+                }
+
+                function isMainLayoutSelected(selectionPath) {
+                    let selectedObject = selectionPath[0].context.item;
+                    return selectedObject && selectedObject.type === 'layout' &&
+                        !selectionPath[0].context.layoutItem;
+                }
+
+                if (isMainLayoutSelected(selection[0])) {
+                    return [getAddButton(selection)];
+                }
+
+                let toolbar = {
+                    'add-menu': [],
+                    'toggle-frame': [],
+                    'display-mode': [],
+                    'telemetry-value': [],
+                    'style': [],
+                    'text-style': [],
+                    'position': [],
+                    'text': [],
+                    'url': [],
+                    'remove': [],
+                };
+
+                selection.forEach(selectionPath => {
+                    let selectedParent = selectionPath[1].context.item;
+                    let layoutItem = selectionPath[0].context.layoutItem;
+
+                    if (layoutItem.type === 'subobject-view') {
+                        if (toolbar['add-menu'].length === 0 && selectionPath[0].context.item.type === 'layout') {
+                            toolbar['add-menu'] = [getAddButton(selection, selectionPath)];
+                        }
+                        if (toolbar['toggle-frame'].length === 0) {
+                            toolbar['toggle-frame'] = [getToggleFrameButton(selectedParent, selection)];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getHeightInput(selectedParent, selection),
+                                getWidthInput(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    } else if (layoutItem.type === 'telemetry-view') {
+                        if (toolbar['display-mode'].length === 0) {
+                            toolbar['display-mode'] = [getDisplayModeMenu(selectedParent, selection)];
+                        }
+                        if (toolbar['telemetry-value'].length === 0) {
+                            toolbar['telemetry-value'] = [getTelemetryValueMenu(selectionPath, selection)];
+                        }
+                        if (toolbar['style'].length < 2) {
+                            toolbar['style'] = [
+                                getFillMenu(selectedParent, selection),
+                                getStrokeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['text-style'].length === 0) {
+                            toolbar['text-style'] = [
+                                getTextColorMenu(selectedParent, selection),
+                                getTextSizeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getHeightInput(selectedParent, selection),
+                                getWidthInput(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    } else if (layoutItem.type === 'text-view') {
+                        if (toolbar['style'].length < 2) {
+                            toolbar['style'] = [
+                                getFillMenu(selectedParent, selection),
+                                getStrokeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['text-style'].length === 0) {
+                            toolbar['text-style'] = [
+                                getTextColorMenu(selectedParent, selection),
+                                getTextSizeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getHeightInput(selectedParent, selection),
+                                getWidthInput(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['text'].length === 0) {
+                            toolbar['text'] = [getTextButton(selectedParent, selection)];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    } else if (layoutItem.type === 'box-view') {
+                        if (toolbar['style'].length < 2) {
+                            toolbar['style'] = [
+                                getFillMenu(selectedParent, selection),
+                                getStrokeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getHeightInput(selectedParent, selection),
+                                getWidthInput(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    } else if (layoutItem.type === 'image-view') {
+                        if (toolbar['style'].length === 0) {
+                            toolbar['style'] = [
+                                getStrokeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getHeightInput(selectedParent, selection),
+                                getWidthInput(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['url'].length === 0) {
+                            toolbar['url'] = [getURLButton(selectedParent, selection)];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    } else if (layoutItem.type === 'line-view') {
+                        if (toolbar['style'].length === 0) {
+                            toolbar['style'] = [
+                                getStrokeMenu(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['position'].length === 0) {
+                            toolbar['position'] = [
+                                getStackOrder(selectedParent, selectionPath),
+                                getXInput(selectedParent, selection),
+                                getYInput(selectedParent, selection),
+                                getX2Input(selectedParent, selection),
+                                getY2Input(selectedParent, selection)
+                            ];
+                        }
+                        if (toolbar['remove'].length === 0) {
+                            toolbar['remove'] = [getRemoveButton(selectedParent, selectionPath, selection)];
+                        }
+                    }
+                });
+
+                let toolbarArray = Object.values(toolbar);
+                return _.flatten(toolbarArray.reduce((accumulator, group, index) => {
+                    group = group.filter(control => control !== undefined);
+
+                    if (group.length > 0) {
+                        accumulator.push(group);
+
+                        if (index < toolbarArray.length - 1) {
+                            accumulator.push(getSeparator());
+                        }
+                    }
+
+                    return accumulator;
+                }, []));
             }
         }
     }

src/plugins/displayLayout/LayoutDrag.js

@@ -95,7 +95,7 @@ define(
          * @param {number[]} pixelDelta the offset from the
          *        original position, in pixels
          */
-        LayoutDrag.prototype.getAdjustedPosition = function (pixelDelta) {
+        LayoutDrag.prototype.getAdjustedPositionAndDimensions = function (pixelDelta) {
             var gridDelta = toGridDelta(this.gridSize, pixelDelta);
             return {
                 position: max(add(
@@ -109,6 +109,16 @@ define(
             };
         };
 
+        LayoutDrag.prototype.getAdjustedPosition = function (pixelDelta) {
+            var gridDelta = toGridDelta(this.gridSize, pixelDelta);
+            return {
+                position: max(add(
+                    this.rawPosition.position,
+                    multiply(gridDelta, this.posFactor)
+                ), [0, 0])
+            };
+        };
+
         return LayoutDrag;
 
     }

src/plugins/displayLayout/components/BoxView.vue

@@ -23,7 +23,8 @@
 <template>
     <layout-frame :item="item"
                   :grid-size="gridSize"
-                  @endDrag="(item, updates) => $emit('endDrag', item, updates)">
+                  @move="(gridDelta) => $emit('move', gridDelta)"
+                  @endMove="() => $emit('endMove')">
         <div class="c-box-view"
              :style="style">
         </div>
@@ -54,8 +55,7 @@
                 x: 1,
                 y: 1,
                 width: 10, 
-                height: 5,
-                useGrid: true
+                height: 5
             };
         },
         inject: ['openmct'],

src/plugins/displayLayout/components/DisplayLayout.vue

@@ -23,8 +23,11 @@
 <template>
     <div class="l-layout"
          @dragover="handleDragOver"
-         @click="bypassSelection"
-         @drop="handleDrop">
+         @click.capture="bypassSelection"
+         @drop="handleDrop"
+         :class="{
+            'is-multi-selected': selectedLayoutItems.length > 1
+            }">
         <!-- Background grid -->
         <div class="l-layout__grid-holder c-grid">
             <div class="c-grid__x l-grid l-grid-x"
@@ -39,18 +42,38 @@
                    :is="item.type"
                    :item="item"
                    :key="item.id"
-                   :gridSize="item.useGrid ? gridSize : [1, 1]"
+                   :gridSize="gridSize"
                    :initSelect="initSelectIndex === index"
                    :index="index"
-                   @endDrag="endDrag"
-        >
+                   :multiSelect="selectedLayoutItems.length > 1"
+                   @move="move"
+                   @endMove="endMove"
+                   @endLineResize='endLineResize'>
         </component>
+        <edit-marquee v-if='showMarquee'
+                      :gridSize="gridSize"
+                      :selectedLayoutItems="selectedLayoutItems"
+                      @endResize="endResize">
+        </edit-marquee>
     </div>
 </template>
 
 <style lang="scss">
     @import "~styles/sass-base";
 
+    @mixin displayMarquee($c) {
+        > .c-frame-edit {
+            // All other frames
+            //@include test($c, 0.4);
+            display: block;
+        }
+        > .c-frame > .c-frame-edit {
+            // Line object frame
+            //@include test($c, 0.4);
+            display: block;
+        }
+    }
+
     .l-layout {
         @include abs();
         display: flex;
@@ -70,7 +93,7 @@
         .l-shell__main-container {
             &[s-selected],
             &[s-selected-parent] {
-                // Display grid in main layout holder when editing
+                // Display grid and allow edit marquee to display in main layout holder when editing
                 > .l-layout {
                     background: $editUIGridColorBg;
 
@@ -84,7 +107,7 @@
         .l-layout__frame {
             &[s-selected],
             &[s-selected-parent] {
-                // Display grid in nested layouts when editing
+                // Display grid and allow edit marquee to display in nested layouts when editing
                 > * > * > .l-layout {
                     background: $editUIGridColorBg;
                     box-shadow: inset $editUIGridColorFg 0 0 2px 1px;
@@ -95,10 +118,21 @@
                 }
             }
         }
+
+        /*********************** EDIT MARQUEE CONTROL */
+        *[s-selected-parent] {
+            > .l-layout {
+                // When main shell layout is the parent
+                @include displayMarquee(deeppink);
+            }
+            > * > * > * {
+                // When a sub-layout is the parent
+                @include displayMarquee(blue);
+            }
+        }
     }
 </style>
 
-
 <script>
     import uuid from 'uuid';
 
@@ -108,6 +142,7 @@
     import TextView from './TextView.vue'
     import LineView from './LineView.vue'
     import ImageView from './ImageView.vue'
+    import EditMarquee from './EditMarquee.vue'
 
     const ITEM_TYPE_VIEW_MAP = {
         'subobject-view': SubobjectView,
@@ -123,9 +158,11 @@
         down: -1,
         bottom: Number.NEGATIVE_INFINITY
     };
-
     const DRAG_OBJECT_TRANSFER_PREFIX = 'openmct/domain-object/';
 
+    let components = ITEM_TYPE_VIEW_MAP;
+    components['edit-marquee'] = EditMarquee;
+
     function getItemDefinition(itemType, ...options) {
         let itemView = ITEM_TYPE_VIEW_MAP[itemType];
 
@@ -141,7 +178,8 @@
             let domainObject = JSON.parse(JSON.stringify(this.domainObject));
             return {
                 internalDomainObject: domainObject,
-                initSelectIndex: undefined
+                initSelectIndex: undefined,
+                selection: []
             };
         },
         computed: {
@@ -150,82 +188,115 @@
             },
             layoutItems() {
                 return this.internalDomainObject.configuration.items;
+            },
+            selectedLayoutItems() {
+                return this.layoutItems.filter(item => {
+                    return this.itemIsInCurrentSelection(item);
+                });
+            },
+            showMarquee() {
+                let selectionPath = this.selection[0];
+                let singleSelectedLine = this.selection.length === 1 &&
+                    selectionPath[0].context.layoutItem && selectionPath[0].context.layoutItem.type === 'line-view';
+                return selectionPath && selectionPath.length > 1 && !singleSelectedLine;
             }
         },
         inject: ['openmct', 'options'],
         props: ['domainObject'],
-        components: ITEM_TYPE_VIEW_MAP,
+        components: components,
         methods: {
             addElement(itemType, element) {
                 this.addItem(itemType + '-view', element);
             },
             setSelection(selection) {
-                if (selection.length === 0) {
-                    return;
-                }
-
-                if (this.removeSelectionListener) {
-                    this.removeSelectionListener();
-                }
-
-                let itemIndex = selection[0].context.index;
-
-                if (itemIndex !== undefined) {
-                    this.attachSelectionListener(itemIndex);
-                }
+                this.selection = selection;
             },
-            attachSelectionListener(index) {
-                let path = `configuration.items[${index}].useGrid`;
-                this.removeSelectionListener = this.openmct.objects.observe(this.internalDomainObject, path, function (value) {
-                    let item = this.layoutItems[index];
-
-                    if (value) {
-                        item.x = Math.round(item.x / this.gridSize[0]);
-                        item.y = Math.round(item.y / this.gridSize[1]);
-                        item.width = Math.round(item.width / this.gridSize[0]);
-                        item.height = Math.round(item.height / this.gridSize[1]);
-
-                        if (item.x2) {
-                            item.x2 = Math.round(item.x2 / this.gridSize[0]);
-                        }
-                        if (item.y2) {
-                            item.y2 = Math.round(item.y2 / this.gridSize[1]);
-                        }
-                    } else {
-                        item.x = this.gridSize[0] * item.x;
-                        item.y = this.gridSize[1] * item.y;
-                        item.width = this.gridSize[0] * item.width;
-                        item.height = this.gridSize[1] * item.height;
-
-                        if (item.x2) {
-                            item.x2 = this.gridSize[0] * item.x2;
-                        }
-                        if (item.y2) {
-                            item.y2 = this.gridSize[1] * item.y2;
-                        }
-                    }
-                    item.useGrid = value;
-                    this.mutate(`configuration.items[${index}]`, item);
-                }.bind(this));
+            itemIsInCurrentSelection(item) {
+                return this.selection.some(selectionPath =>
+                    selectionPath[0].context.layoutItem && selectionPath[0].context.layoutItem.id === item.id);
             },
             bypassSelection($event) {
                 if (this.dragInProgress) {
                     if ($event) {
                         $event.stopImmediatePropagation();
                     }
+                    this.dragInProgress = false;
                     return;
                 }
             },
-            endDrag(item, updates) {
+            endLineResize(item, updates) {
                 this.dragInProgress = true;
-                setTimeout(function () {
-                    this.dragInProgress = false;
-                }.bind(this), 0);
-
                 let index = this.layoutItems.indexOf(item);
                 Object.assign(item, updates);
                 this.mutate(`configuration.items[${index}]`, item);
             },
+            endResize(scaleWidth, scaleHeight, marqueeStart, marqueeOffset) {
+                this.dragInProgress = true;
+                this.layoutItems.forEach(item => {
+                    if (this.itemIsInCurrentSelection(item)) {
+                        let itemXInMarqueeSpace = item.x - marqueeStart.x;
+                        let itemXInMarqueeSpaceAfterScale = Math.round(itemXInMarqueeSpace * scaleWidth);
+                        item.x = itemXInMarqueeSpaceAfterScale + marqueeOffset.x + marqueeStart.x;
+
+                        let itemYInMarqueeSpace = item.y - marqueeStart.y;
+                        let itemYInMarqueeSpaceAfterScale = Math.round(itemYInMarqueeSpace * scaleHeight);
+                        item.y = itemYInMarqueeSpaceAfterScale + marqueeOffset.y + marqueeStart.y;
+
+                        if (item.x2) {
+                            let itemX2InMarqueeSpace = item.x2 - marqueeStart.x;
+                            let itemX2InMarqueeSpaceAfterScale = Math.round(itemX2InMarqueeSpace * scaleWidth);
+                            item.x2 = itemX2InMarqueeSpaceAfterScale + marqueeOffset.x + marqueeStart.x;
+                        } else {
+                            item.width = Math.round(item.width * scaleWidth);
+                        }
+
+                        if (item.y2) {
+                            let itemY2InMarqueeSpace = item.y2 - marqueeStart.y;
+                            let itemY2InMarqueeSpaceAfterScale = Math.round(itemY2InMarqueeSpace * scaleHeight);
+                            item.y2 = itemY2InMarqueeSpaceAfterScale + marqueeOffset.y + marqueeStart.y;
+                        } else {
+                            item.height = Math.round(item.height * scaleHeight);
+                        }
+                    }
+                });
+                this.mutate("configuration.items", this.layoutItems);
+            },
+            move(gridDelta) {
+                this.dragInProgress = true;
+
+                if (!this.initialPositions) {
+                    this.initialPositions = {};
+                    _.cloneDeep(this.selectedLayoutItems).forEach(selectedItem => {
+                        if (selectedItem.type === 'line-view') {
+                            this.initialPositions[selectedItem.id] = [selectedItem.x, selectedItem.y, selectedItem.x2, selectedItem.y2];
+                        } else {
+                            this.initialPositions[selectedItem.id] = [selectedItem.x, selectedItem.y];
+                        }
+                    });
+                }
+
+                let layoutItems = this.layoutItems.map(item => {
+                    if (this.initialPositions[item.id]) {
+                        let startingPosition = this.initialPositions[item.id];
+                        let [startingX, startingY, startingX2, startingY2] = startingPosition;
+                        item.x = startingX + gridDelta[0];
+                        item.y = startingY + gridDelta[1];
+
+                        if (item.x2) {
+                            item.x2 = startingX2 + gridDelta[0];
+                        }
+
+                        if (item.y2) {
+                            item.y2 = startingY2 + gridDelta[1];
+                        }
+                    }
+                    return item;
+                });
+            },
+            endMove() {
+                this.mutate('configuration.items', this.layoutItems);
+                this.initialPositions = undefined;
+            },
             mutate(path, value) {
                 this.openmct.objects.mutate(this.internalDomainObject, path, value);
             },
@@ -313,11 +384,15 @@
                     this.objectViewMap[keyString] = true;
                 }
             },
-            removeItem(item, index) {
+            removeItem(selectedItems) {
+                let indices = [];
                 this.initSelectIndex = -1;
-                this.layoutItems.splice(index, 1);
+                selectedItems.forEach(selectedItem => {
+                    indices.push(selectedItem[0].context.index);
+                    this.untrackItem(selectedItem[0].context.layoutItem);
+                });
+                _.pullAt(this.layoutItems, indices);
                 this.mutate("configuration.items", this.layoutItems);
-                this.untrackItem(item);
                 this.$el.click();
             },
             untrackItem(item) {
@@ -383,20 +458,74 @@
                 this.mutate("configuration.items", layoutItems);
                 this.$el.click();
             },
-            orderItem(position, index) {
+            orderItem(position, selectedItems) {
                 let delta = ORDERS[position];
-                let newIndex = Math.max(Math.min(index + delta, this.layoutItems.length - 1), 0);
-                let item = this.layoutItems[index];
+                let indices = [];
+                let newIndex = -1;
+                let items = [];
 
-                if (newIndex !== index) {
-                    this.layoutItems.splice(index, 1);
-                    this.layoutItems.splice(newIndex, 0, item);
-                    this.mutate('configuration.items', this.layoutItems);
+                Object.assign(items, this.layoutItems);
+                this.selectedLayoutItems.forEach(selectedItem => {
+                    indices.push(this.layoutItems.indexOf(selectedItem));
+                });
+                indices.sort((a, b) => a - b);
 
-                    if (this.removeSelectionListener) {
-                        this.removeSelectionListener();
-                        this.attachSelectionListener(newIndex);
+                if (position === 'top' || position === 'up') {
+                    indices.reverse();
+                }
+
+                if (position === 'top' || position === 'bottom') {
+                    this.moveToTopOrBottom(position, indices, items, delta);
+                } else {
+                    this.moveUpOrDown(position, indices, items, delta);
+                }
+
+                this.mutate('configuration.items', this.layoutItems);
+            },
+            moveUpOrDown(position, indices, items, delta) {
+                let previousItemIndex = -1;
+                let newIndex = -1;
+
+                indices.forEach((itemIndex, index) => {
+                    let isAdjacentItemSelected = position === 'up' ?
+                        itemIndex + 1 === previousItemIndex :
+                        itemIndex - 1 === previousItemIndex;
+
+                    if (index > 0 && isAdjacentItemSelected) {
+                        if (position === 'up') {
+                            newIndex -= 1;
+                        } else {
+                            newIndex += 1;
+                        }
+                    } else {
+                        newIndex = Math.max(Math.min(itemIndex + delta, this.layoutItems.length - 1), 0);
                     }
+
+                    previousItemIndex = itemIndex;
+                    this.updateItemOrder(newIndex, itemIndex, items);
+                });
+            },
+            moveToTopOrBottom(position, indices, items, delta) {
+                let newIndex = -1;
+
+                indices.forEach((itemIndex, index) => {
+                    if (index === 0) {
+                        newIndex = Math.max(Math.min(itemIndex + delta, this.layoutItems.length - 1), 0);
+                    } else {
+                        if (position === 'top') {
+                            newIndex -= 1;
+                        } else {
+                            newIndex += 1;
+                        }
+                    }
+
+                    this.updateItemOrder(newIndex, itemIndex, items);
+                });
+            },
+            updateItemOrder(newIndex, itemIndex, items) {
+                if (newIndex !== itemIndex) {
+                    this.layoutItems.splice(itemIndex, 1);
+                    this.layoutItems.splice(newIndex, 0, items[itemIndex]);
                 }
             }
         },
@@ -412,14 +541,10 @@
             this.composition.load();
         },
         destroyed: function () {
-            this.openmct.off('change', this.setSelection);
+            this.openmct.selection.off('change', this.setSelection);
             this.composition.off('add', this.addChild);
             this.composition.off('remove', this.removeChild);
             this.unlisten();
-
-            if (this.removeSelectionListener) {
-                this.removeSelectionListener();
-            }
         }
     }
 </script>

src/plugins/displayLayout/components/EditMarquee.vue

@@ -0,0 +1,233 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2018, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+<template>
+        <!-- Resize handles -->
+        <div class="c-frame-edit" :style="style">
+            <div class="c-frame-edit__handle c-frame-edit__handle--nw"
+                 @mousedown="startResize([1,1], [-1,-1], $event)"></div>
+            <div class="c-frame-edit__handle c-frame-edit__handle--ne"
+                 @mousedown="startResize([0,1], [1,-1], $event)"></div>
+            <div class="c-frame-edit__handle c-frame-edit__handle--sw"
+                 @mousedown="startResize([1,0], [-1,1], $event)"></div>
+            <div class="c-frame-edit__handle c-frame-edit__handle--se"
+                 @mousedown="startResize([0,0], [1,1], $event)"></div>
+        </div>
+</template>
+
+<style lang="scss">
+    @import "~styles/sass-base";
+
+    .c-frame-edit {
+        // In Layouts, this is the editing rect and handles
+        display: none; // Set to display: block in DisplayLayout.vue
+        pointer-events: none;
+        @include abs();
+        border: $editMarqueeBorder;
+
+        &__handle {
+            $d: 6px;
+            $o: floor($d * -0.5);
+            background: $editFrameColorHandleFg;
+            box-shadow: $editFrameColorHandleBg 0 0 0 2px;
+            pointer-events: all;
+            position: absolute;
+            width: $d; height: $d;
+            top: auto; right: auto; bottom: auto; left: auto;
+
+            &:before {
+                // Extended hit area
+                @include abs(-10px);
+                content: '';
+                display: block;
+                z-index: 0;
+            }
+
+            &:hover {
+                background: $editUIColor;
+            }
+
+            &--nwse {
+                cursor: nwse-resize;
+            }
+
+            &--nw {
+                cursor: nw-resize;
+                left: $o; top: $o;
+            }
+
+            &--ne {
+                cursor: ne-resize;
+                right: $o; top: $o;
+            }
+
+            &--se {
+                cursor: se-resize;
+                right: $o; bottom: $o;
+            }
+
+            &--sw {
+                cursor: sw-resize;
+                left: $o; bottom: $o;
+            }
+        }
+    }
+</style>
+
+
+<script>
+    import LayoutDrag from './../LayoutDrag'
+
+    export default {
+        inject: ['openmct'],
+        props: {
+            selectedLayoutItems: Array,
+            gridSize: Array
+        },        
+        data() {
+            return {
+                dragPosition: undefined
+            }
+        },
+        computed: {
+            style() {
+                let x = Number.POSITIVE_INFINITY;
+                let y = Number.POSITIVE_INFINITY;
+                let width = Number.NEGATIVE_INFINITY;
+                let height = Number.NEGATIVE_INFINITY;
+
+                this.selectedLayoutItems.forEach(item => {
+                    if (item.x2) {
+                        let lineWidth = Math.abs(item.x - item.x2);
+                        let lineMinX = Math.min(item.x, item.x2);
+                        x = Math.min(lineMinX, x);
+                        width = Math.max(lineWidth + lineMinX, width);
+                    } else {
+                        x = Math.min(item.x, x);
+                        width = Math.max(item.width + item.x, width);
+                    }
+
+                    if (item.y2) {
+                        let lineHeight = Math.abs(item.y - item.y2);
+                        let lineMinY = Math.min(item.y, item.y2);
+                        y = Math.min(lineMinY, y);
+                        height = Math.max(lineHeight + lineMinY, height);
+                    } else {
+                        y = Math.min(item.y, y);
+                        height = Math.max(item.height + item.y, height);
+                    }
+                });
+
+                if (this.dragPosition) {
+                    [x, y] = this.dragPosition.position;
+                    [width, height] = this.dragPosition.dimensions;
+                } else {
+                    width = width - x;
+                    height = height - y;
+                }
+
+                this.marqueePosition = {
+                    x: x,
+                    y: y,
+                    width: width,
+                    height: height
+                }
+                return this.getMarqueeStyle(x, y, width, height);
+            }
+        },
+        methods: {
+            getMarqueeStyle(x, y, width, height) {
+                return {
+                    left: (this.gridSize[0] * x) + 'px',
+                    top: (this.gridSize[1] * y) + 'px',
+                    width: (this.gridSize[0] * width) + 'px',
+                    height: (this.gridSize[1] * height) + 'px'
+                };
+            },
+            updatePosition(event) {
+                let currentPosition = [event.pageX, event.pageY];
+                this.initialPosition = this.initialPosition || currentPosition;
+                this.delta = currentPosition.map(function (value, index) {
+                    return value - this.initialPosition[index];
+                }.bind(this));
+            },
+            startResize(posFactor, dimFactor, event) {
+                document.body.addEventListener('mousemove', this.continueResize);
+                document.body.addEventListener('mouseup', this.endResize);
+                this.marqueeStartPosition = {
+                    position: [this.marqueePosition.x, this.marqueePosition.y],
+                    dimensions: [this.marqueePosition.width, this.marqueePosition.height]
+                };
+                this.updatePosition(event);
+                this.activeDrag = new LayoutDrag(this.marqueeStartPosition, posFactor, dimFactor, this.gridSize);
+                event.preventDefault();
+            },
+            continueResize(event) {
+                event.preventDefault();
+                this.updatePosition(event);
+                this.dragPosition = this.activeDrag.getAdjustedPositionAndDimensions(this.delta);
+            },
+            endResize(event) {
+                document.body.removeEventListener('mousemove', this.continueResize);
+                document.body.removeEventListener('mouseup', this.endResize);
+                this.continueResize(event);
+
+                let marqueeStartWidth = this.marqueeStartPosition.dimensions[0];
+                let marqueeStartHeight = this.marqueeStartPosition.dimensions[1];
+                let marqueeStartX = this.marqueeStartPosition.position[0];
+                let marqueeStartY = this.marqueeStartPosition.position[1];
+
+                let marqueeEndX = this.dragPosition.position[0];
+                let marqueeEndY = this.dragPosition.position[1];
+                let marqueeEndWidth = this.dragPosition.dimensions[0];
+                let marqueeEndHeight = this.dragPosition.dimensions[1];
+
+                let scaleWidth =  marqueeEndWidth / marqueeStartWidth;
+                let scaleHeight =  marqueeEndHeight / marqueeStartHeight;
+
+                let marqueeStart = {
+                    x: marqueeStartX,
+                    y: marqueeStartY,
+                    height: marqueeStartWidth,
+                    width: marqueeStartHeight
+                };
+                let marqueeEnd = {
+                    x: marqueeEndX,
+                    y: marqueeEndY,
+                    width: marqueeEndWidth,
+                    height: marqueeEndHeight
+                };
+                let marqueeOffset = {
+                    x: marqueeEnd.x - marqueeStart.x,
+                    y: marqueeEnd.y - marqueeStart.y
+                };
+
+                this.$emit('endResize', scaleWidth, scaleHeight, marqueeStart, marqueeOffset);
+                this.dragPosition = undefined;
+                this.initialPosition = undefined;
+                this.marqueeStartPosition = undefined;
+                this.delta = undefined;
+                event.preventDefault();
+            }
+        }
+    }
+</script>

src/plugins/displayLayout/components/ImageView.vue

@@ -23,7 +23,8 @@
 <template>
     <layout-frame :item="item"
                   :grid-size="gridSize"
-                  @endDrag="(item, updates) => $emit('endDrag', item, updates)">
+                  @move="(gridDelta) => $emit('move', gridDelta)"
+                  @endMove="() => $emit('endMove')">
         <div class="c-image-view"
              :style="style">
         </div>
@@ -56,8 +57,7 @@
                 y: 1,
                 width: 10,
                 height: 5,
-                url: element.url,
-                useGrid: true
+                url: element.url
             };
         },
         inject: ['openmct'],

src/plugins/displayLayout/components/LayoutFrame.vue

@@ -24,25 +24,14 @@
     <div class="l-layout__frame c-frame"
          :class="{
              'no-frame': !item.hasFrame,
-             'u-inspectable': inspectable,
-             'is-resizing': isResizing
+             'u-inspectable': inspectable
          }"
          :style="style">
 
         <slot></slot>
 
-        <!-- Drag handles -->
-        <div class="c-frame-edit">
-            <div class="c-frame-edit__move"
-                 @mousedown="startDrag([1,1], [0,0], $event, 'move')"></div>
-            <div class="c-frame-edit__handle c-frame-edit__handle--nw"
-                 @mousedown="startDrag([1,1], [-1,-1], $event, 'resize')"></div>
-            <div class="c-frame-edit__handle c-frame-edit__handle--ne"
-                 @mousedown="startDrag([0,1], [1,-1], $event, 'resize')"></div>
-            <div class="c-frame-edit__handle c-frame-edit__handle--sw"
-                 @mousedown="startDrag([1,0], [-1,1], $event, 'resize')"></div>
-            <div class="c-frame-edit__handle c-frame-edit__handle--se"
-                 @mousedown="startDrag([0,0], [1,1], $event, 'resize')"></div>
+        <div class="c-frame-edit__move"
+             @mousedown="startMove([1,1], [0,0], $event)">
         </div>
     </div>
 </template>
@@ -50,7 +39,7 @@
 <style lang="scss">
     @import "~styles/sass-base";
 
-    /******************************* FRAME */
+    /******************* FRAME */
     .c-frame {
         display: flex;
         flex-direction: column;
@@ -59,124 +48,15 @@
         > *:first-child {
             flex: 1 1 auto;
         }
-
-        &:not(.no-frame) {
-            background: $colorBodyBg;
-            border: $browseFrameBorder;
-            padding: $interiorMargin;
-        }
-
     }
 
-    .c-frame-edit {
-        // In Layouts, this is the editing rect and handles
-        // In Fixed Position, this is a wrapper element
-        @include abs();
+    .c-frame-edit__move {
         display: none;
-
-        &__move {
-            @include abs();
-            cursor: move;
-        }
-
-        &__handle {
-            $d: 6px;
-            $o: floor($d * -0.5);
-            background: $editFrameColorHandleFg;
-            box-shadow: $editFrameColorHandleBg 0 0 0 2px;
-            display: none; // Set to block via s-selected selector
-            position: absolute;
-            width: $d; height: $d;
-            top: auto; right: auto; bottom: auto; left: auto;
-
-            &:before {
-                // Extended hit area
-                @include abs(-10px);
-                content: '';
-                display: block;
-                z-index: 0;
-            }
-
-            &:hover {
-                background: $editUIColor;
-            }
-
-            &--nwse {
-                cursor: nwse-resize;
-            }
-
-            &--nw {
-                cursor: nw-resize;
-                left: $o; top: $o;
-            }
-
-            &--ne {
-                cursor: ne-resize;
-                right: $o; top: $o;
-            }
-
-            &--se {
-                cursor: se-resize;
-                right: $o; bottom: $o;
-            }
-
-            &--sw {
-                cursor: sw-resize;
-                left: $o; bottom: $o;
-            }
-        }
-    }
-
-    .c-so-view.has-complex-content + .c-frame-edit {
-        // Target frames that hold domain objects that include header elements, as opposed to drawing and alpha objects
-        // Make the __move element a more affordable drag UI element
-        .c-frame-edit__move {
-            @include userSelectNone();
-            background: $editFrameMovebarColorBg;
-            box-shadow: rgba(black, 0.2) 0 1px;
-            bottom: auto;
-            height: 0; // Height is set on hover on s-selected.c-frame
-            opacity: 0.8;
-            max-height: 100%;
-            overflow: hidden;
-            text-align: center;
-
-            &:before {
-                // Grippy
-                $h: 4px;
-                $tbOffset: ($editFrameMovebarH - $h) / 2;
-                $lrOffset: 25%;
-                @include grippy($editFrameMovebarColorFg);
-                content: '';
-                display: block;
-                position: absolute;
-                top: $tbOffset; right: $lrOffset; bottom: $tbOffset; left: $lrOffset;
-            }
-
-            &:hover {
-                background: $editFrameHovMovebarColorBg;
-                &:before { @include grippy($editFrameHovMovebarColorFg); }
-            }
-        }
     }
 
     .is-editing {
+        /******************* STYLES FOR C-FRAME WHILE EDITING */
         .c-frame {
-            $moveBarOutDelay: 500ms;
-            &.no-frame {
-                border: $editFrameBorder; // Base border style for a frame element while editing.
-            }
-
-            &-edit {
-                display: contents;
-            }
-
-            &-edit__move,
-            .c-so-view {
-                transition: $transOut;
-                transition-delay: $moveBarOutDelay;
-            }
-
             &:not([s-selected]) {
                 &:hover {
                     border: $editFrameBorderHov;
@@ -188,37 +68,110 @@
                 border: $editFrameSelectedBorder;
                 box-shadow: $editFrameSelectedShdw;
 
-                > .c-frame-edit {
-                    [class*='__handle'] {
+                .c-frame-edit__move {
+                    cursor: move;
+                }
+            }
+        }
+
+        /******************* DEFAULT STYLES FOR -EDIT__MOVE */
+        // All object types
+        .c-frame-edit__move {
+            @include abs();
+            display: block;
+        }
+
+        // Has-complex-content objects
+        .c-so-view.has-complex-content {
+            transition: $transOut;
+            transition-delay: $moveBarOutDelay;
+
+            > .c-so-view__local-controls {
+                transition: transform 250ms ease-in-out;
+                transition-delay: $moveBarOutDelay;
+            }
+
+            + .c-frame-edit__move {
+                display: none;
+            }
+
+        }
+
+        .l-layout {
+            /******************* 0 - 1 ITEM SELECTED */
+            &:not(.is-multi-selected) {
+                > .l-layout__frame[s-selected] {
+                    > .c-so-view.has-complex-content {
+                        > .c-so-view__local-controls {
+                            transition: transform $transOutTime ease-in-out;
+                            transition-delay: $moveBarOutDelay;
+                        }
+
+                        + .c-frame-edit__move {
+                            transition: $transOut;
+                            transition-delay: $moveBarOutDelay;
+                            @include userSelectNone();
+                            background: $editFrameMovebarColorBg;
+                            box-shadow: rgba(black, 0.2) 0 1px;
+                            bottom: auto;
+                            display: block;
+                            height: 0; // Height is set on hover below
+                            opacity: 0.8;
+                            max-height: 100%;
+                            overflow: hidden;
+                            text-align: center;
+
+                            &:before {
+                                // Grippy
+                                $h: 4px;
+                                $tbOffset: ($editFrameMovebarH - $h) / 2;
+                                $lrOffset: 25%;
+                                @include grippy($editFrameMovebarColorFg);
+                                content: '';
+                                display: block;
+                                position: absolute;
+                                top: $tbOffset;
+                                right: $lrOffset;
+                                bottom: $tbOffset;
+                                left: $lrOffset;
+                            }
+                        }
+                    }
+
+                    &:hover {
+                        > .c-so-view.has-complex-content {
+                            transition: $transIn;
+                            transition-delay: 0s;
+                            padding-top: $editFrameMovebarH + $interiorMarginSm;
+
+                            > .c-so-view__local-controls {
+                                transform: translateY($editFrameMovebarH);
+                                transition: transform $transInTime ease-in-out;
+                                transition-delay: 0s;
+                            }
+
+                            + .c-frame-edit__move {
+                                transition: $transIn;
+                                transition-delay: 0s;
+                                height: $editFrameMovebarH;
+                            }
+                        }
+                    }
+                }
+            }
+
+            /******************* > 1 ITEMS SELECTED */
+            &.is-multi-selected {
+                .l-layout__frame[s-selected] {
+                    > .c-so-view.has-complex-content + .c-frame-edit__move {
                         display: block;
                     }
                 }
             }
         }
-
-        .l-layout__frame:not(.is-resizing) {
-            // Show and animate the __move bar for sub-object views with complex content
-            &:hover > .c-so-view.has-complex-content {
-                // Move content down so the __move bar doesn't cover it.
-                padding-top: $editFrameMovebarH;
-                transition: $transIn;
-
-                &.c-so-view--no-frame {
-                    // Move content down with a bit more space
-                    padding-top: $editFrameMovebarH + $interiorMarginSm;
-                }
-
-                // Show the move bar
-                + .c-frame-edit .c-frame-edit__move {
-                    height: $editFrameMovebarH;
-                    transition: $transIn;
-                }
-            }
-        }
     }
 </style>
 
-
 <script>
     import LayoutDrag from './../LayoutDrag'
 
@@ -228,21 +181,9 @@
             item: Object,
             gridSize: Array
         },
-        data() {
-            return {
-                dragPosition: undefined,
-                isResizing: undefined
-            }
-        },
         computed: {
             style() {
                 let {x, y, width, height} = this.item;
-
-                if (this.dragPosition) {
-                    [x, y] = this.dragPosition.position;
-                    [width, height] = this.dragPosition.dimensions;
-                }
-
                 return {
                     left: (this.gridSize[0] * x) + 'px',
                     top: (this.gridSize[1] * y) + 'px',
@@ -264,36 +205,40 @@
                     return value - this.initialPosition[index];
                 }.bind(this));
             },
-            startDrag(posFactor, dimFactor, event, type) {
-                document.body.addEventListener('mousemove', this.continueDrag);
-                document.body.addEventListener('mouseup', this.endDrag);
-
+            startMove(posFactor, dimFactor, event) {
+                document.body.addEventListener('mousemove', this.continueMove);
+                document.body.addEventListener('mouseup', this.endMove);
                 this.dragPosition = {
-                    position: [this.item.x, this.item.y],
-                    dimensions: [this.item.width, this.item.height]
+                    position: [this.item.x, this.item.y]
                 };
                 this.updatePosition(event);
                 this.activeDrag = new LayoutDrag(this.dragPosition, posFactor, dimFactor, this.gridSize);
-                this.isResizing = type === 'resize';
                 event.preventDefault();
             },
-            continueDrag(event) {
+            continueMove(event) {
                 event.preventDefault();
                 this.updatePosition(event);
-                this.dragPosition = this.activeDrag.getAdjustedPosition(this.delta);
+                let newPosition = this.activeDrag.getAdjustedPosition(this.delta);
+
+                if (!_.isEqual(newPosition, this.dragPosition)) {
+                    this.dragPosition = newPosition;
+                    this.$emit('move', this.toGridDelta(this.delta));
+                }
             },
-            endDrag(event) {
-                document.body.removeEventListener('mousemove', this.continueDrag);
-                document.body.removeEventListener('mouseup', this.endDrag);
-                this.continueDrag(event);
-                let [x, y] = this.dragPosition.position;
-                let [width, height] = this.dragPosition.dimensions;
-                this.$emit('endDrag', this.item, {x, y, width, height});
+            endMove(event) {
+                document.body.removeEventListener('mousemove', this.continueMove);
+                document.body.removeEventListener('mouseup', this.endMove);
+                this.continueMove(event);
+                this.$emit('endMove');
                 this.dragPosition = undefined;
                 this.initialPosition = undefined;
                 this.delta = undefined;
-                this.isResizing = undefined;
                 event.preventDefault();
+            },
+            toGridDelta(pixelDelta) {
+                return pixelDelta.map((v, i) => {
+                    return Math.round(v / this.gridSize[i]);
+                });
             }
         }
     }

src/plugins/displayLayout/components/LineView.vue

@@ -30,9 +30,9 @@
             </line>
         </svg>
 
-        <div class="c-frame-edit">
-            <div class="c-frame-edit__move"
-                 @mousedown="startDrag($event)"></div>
+        <div class="c-frame-edit__move"
+             @mousedown="startDrag($event)"></div>
+        <div class="c-frame-edit" v-if="showFrameEdit">
             <div class="c-frame-edit__handle"
                  :class="startHandleClass"
                  @mousedown="startDrag($event, 'start')"></div>
@@ -66,8 +66,7 @@
                 y: 10,
                 x2: 10,
                 y2: 5,
-                stroke: '#717171',
-                useGrid: true
+                stroke: '#717171'
             };
         },
         inject: ['openmct'],
@@ -76,24 +75,31 @@
             gridSize: Array,
             initSelect: Boolean,
             index: Number,
+            multiSelect: Boolean
         },
         data() {
             return {
-                dragPosition: undefined
+                dragPosition: undefined,
+                dragging: undefined,
+                selection: []
             };
         },
         computed: {
+            showFrameEdit() {
+                let layoutItem = this.selection.length > 0 && this.selection[0][0].context.layoutItem;
+                return !this.multiSelect && layoutItem && layoutItem.id === this.item.id;
+            },
             position() {
                 let {x, y, x2, y2} = this.item;
-                if (this.dragPosition) {
+                if (this.dragging && this.dragPosition) {
                     ({x, y, x2, y2} = this.dragPosition);
                 }
                 return {x, y, x2, y2};
             },
             style() {
                 let {x, y, x2, y2} = this.position;
-                let width = this.gridSize[0] * Math.abs(x - x2);
-                let height = this.gridSize[1] * Math.abs(y - y2);
+                let width = Math.max(this.gridSize[0] * Math.abs(x - x2), 1);
+                let height = Math.max(this.gridSize[1] * Math.abs(y - y2), 1);
                 let left = this.gridSize[0] * Math.min(x, x2);
                 let top = this.gridSize[1] * Math.min(y, y2);
                 return {
@@ -175,13 +181,27 @@
                 event.preventDefault();
                 let pxDeltaX = this.startPosition[0] - event.pageX;
                 let pxDeltaY = this.startPosition[1] - event.pageY;
-                this.dragPosition = this.calculateDragPosition(pxDeltaX, pxDeltaY);
+                let newPosition = this.calculateDragPosition(pxDeltaX, pxDeltaY);
+
+                if (!this.dragging) {
+                    if (!_.isEqual(newPosition, this.dragPosition)) {
+                        let gridDelta = [event.pageX - this.startPosition[0], event.pageY - this.startPosition[1]];
+                        this.dragPosition = newPosition;
+                        this.$emit('move', this.toGridDelta(gridDelta));
+                    }
+                } else {
+                    this.dragPosition = newPosition;
+                }
             },
             endDrag(event) {
                 document.body.removeEventListener('mousemove', this.continueDrag);
                 document.body.removeEventListener('mouseup', this.endDrag);
                 let {x, y, x2, y2} = this.dragPosition;
-                this.$emit('endDrag', this.item, {x, y, x2, y2});
+                if (!this.dragging) {
+                    this.$emit('endMove');
+                } else {
+                    this.$emit('endLineResize', this.item, {x, y, x2, y2});
+                }
                 this.dragPosition = undefined;
                 this.dragging = undefined;
                 event.preventDefault();
@@ -191,6 +211,7 @@
                 let gridDeltaY = Math.round(pxDeltaY / this.gridSize[0]); // TODO: should this be gridSize[1]?
                 let {x, y, x2, y2} = this.item;
                 let dragPosition = {x, y, x2, y2};
+
                 if (this.dragging === 'start') {
                     dragPosition.x -= gridDeltaX;
                     dragPosition.y -= gridDeltaY;
@@ -205,6 +226,14 @@
                     dragPosition.y2 -= gridDeltaY;
                 }
                 return dragPosition;
+            },
+            setSelection(selection) {
+                this.selection = selection;
+            },
+            toGridDelta(pixelDelta) {
+                return pixelDelta.map((v, i) => {
+                    return Math.round(v / this.gridSize[i]);
+                });
             }
         },
         watch: {
@@ -217,6 +246,7 @@
             }
         },
         mounted() {
+            this.openmct.selection.on('change', this.setSelection);
             this.context = {
                 layoutItem: this.item,
                 index: this.index
@@ -228,6 +258,7 @@
             if (this.removeSelectable) {
                 this.removeSelectable();
             }
+            this.openmct.selection.off('change', this.setSelection);
         }
     }
  </script>

src/plugins/displayLayout/components/SubobjectView.vue

@@ -22,7 +22,9 @@
 <template>
     <layout-frame :item="item"
                   :grid-size="gridSize"
-                  @endDrag="(item, updates) => $emit('endDrag', item, updates)">
+                  :title="domainObject && domainObject.name"
+                  @move="(gridDelta) => $emit('move', gridDelta)"
+                  @endMove="() => $emit('endMove')">
         <object-frame v-if="domainObject"
                       :domain-object="domainObject"
                       :object-path="objectPath"
@@ -66,8 +68,7 @@
                 x: position[0],
                 y: position[1],
                 identifier: domainObject.identifier,
-                hasFrame: hasFrameByDefault(domainObject.type),
-                useGrid: true
+                hasFrame: hasFrameByDefault(domainObject.type)
             };
         },
         inject: ['openmct'],

src/plugins/displayLayout/components/TelemetryView.vue

@@ -23,7 +23,8 @@
  <template>
      <layout-frame :item="item"
                    :grid-size="gridSize"
-                   @endDrag="(item, updates) => $emit('endDrag', item, updates)">
+                   @move="(gridDelta) => $emit('move', gridDelta)"
+                   @endMove="() => $emit('endMove')">
         <div class="c-telemetry-view"
              :style="styleObject"
              v-if="domainObject">
@@ -96,10 +97,9 @@
                 displayMode: 'all',
                 value: metadata.getDefaultDisplayValue(),
                 stroke: "transparent",
-                fill: "",
+                fill: "transparent",
                 color: "",
-                size: "13px",
-                useGrid: true
+                size: "13px"
             };
         },
         inject: ['openmct'],
@@ -176,7 +176,8 @@
                 let options = {
                     start: bounds.start,
                     end: bounds.end,
-                    size: 1
+                    size: 1,
+                    strategy: 'latest'
                 };
                 this.openmct.telemetry.request(this.domainObject, options)
                     .then(data => {

src/plugins/displayLayout/components/TextView.vue

@@ -23,7 +23,8 @@
  <template>
     <layout-frame :item="item"
                   :grid-size="gridSize"
-                  @endDrag="(item, updates) => $emit('endDrag', item, updates)">
+                  @move="(gridDelta) => $emit('move', gridDelta)"
+                  @endMove="() => $emit('endMove')">
         <div class="c-text-view"
              :style="style">
             {{ item.text }}
@@ -59,8 +60,7 @@
                 y: 1,
                 width: 10,
                 height: 5,
-                text: element.text,
-                useGrid: true
+                text: element.text
             };
         },
         inject: ['openmct'],

src/plugins/displayLayout/plugin.js

@@ -60,6 +60,7 @@ export default function DisplayLayoutPlugin(options) {
                     getSelectionContext() {
                         return {
                             item: domainObject,
+                            supportsMultiSelect: true,
                             addElement: component && component.$refs.displayLayout.addElement,
                             removeItem: component && component.$refs.displayLayout.removeItem,
                             orderItem: component && component.$refs.displayLayout.orderItem

src/plugins/filters/components/FilterField.vue

@@ -42,7 +42,10 @@
 
                 <!-- Checkbox list, NOT editing -->
                 <template v-if="filter.possibleValues && !isEditing">
-                    <span>{{persistedFilters[filter.comparator].join(', ')}}</span>
+                    <span 
+                        v-if="persistedFilters[filter.comparator]">
+                        {{persistedFilters[filter.comparator].join(', ')}}
+                    </span>
                 </template>
             </div>
         </li>

src/plugins/filters/components/FilterObject.vue

@@ -69,16 +69,17 @@ export default {
                 }
             } else {
                 if (!this.updatedFilters[key]) {
-                    this.updatedFilters[key] = {};
+                    this.$set(this.updatedFilters, key, {});
                 }
-                this.updatedFilters[key][comparator] = [value ? valueName : undefined];
+                this.$set(this.updatedFilters[key], comparator, [value ? valueName : undefined]);
             }
 
             this.$emit('updateFilters', this.keyString, this.updatedFilters);
         },
         updateTextFilter(key, comparator, value) {
             if (!this.updatedFilters[key]) {
-                this.updatedFilters[key] = {};
+                this.$set(this.updatedFilters, key, {});
+                this.$set(this.updatedFilters[key], comparator, '');
             }
             this.updatedFilters[key][comparator] = value;
             this.$emit('updateFilters', this.keyString, this.updatedFilters);

src/plugins/filters/components/FiltersView.vue

@@ -23,17 +23,18 @@ export default {
         FilterObject
     },
     inject: [
-        'openmct',
-        'providedObject'
+        'openmct'
     ],
     data() {
+        let providedObject = this.openmct.selection.get()[0][0].context.item;
         let persistedFilters = {};
 
-        if (this.providedObject.configuration && this.providedObject.configuration.filters) {
-            persistedFilters = this.providedObject.configuration.filters;
+        if (providedObject.configuration && providedObject.configuration.filters) {
+            persistedFilters = providedObject.configuration.filters;
         }
 
         return {
+            providedObject,
             persistedFilters,
             children: {}
         }
@@ -73,13 +74,14 @@ export default {
         this.composition.on('add', this.addChildren);
         this.composition.on('remove', this.removeChildren);
         this.composition.load();
-
         this.unobserve = this.openmct.objects.observe(this.providedObject, 'configuration.filters', this.updatePersistedFilters);
+        this.unobserveAllMutation = this.openmct.objects.observe(this.providedObject, '*', (mutatedObject) => this.providedObject = mutatedObject);
     },
     beforeDestroy() {
         this.composition.off('add', this.addChildren);
         this.composition.off('remove', this.removeChildren);
         this.unobserve();
+        this.unobserveAllMutation();
     }
 }
 </script>

src/plugins/filters/filtersInspectorViewProvider.js

@@ -33,23 +33,20 @@ define([
             key: 'filters-inspector',
             name: 'Filters Inspector View',
             canView: function (selection) {
-                if (selection.length === 0) {
+                if (selection.length === 0 || selection[0].length === 0) {
                     return false;
                 }
-                let object = selection[0].context.item;
+                let object = selection[0][0].context.item;
 
                 return object && supportedObjectTypesArray.some(type => object.type === type);
             },
             view: function (selection) {
                 let component;
-                let providedObject = selection[0].context.item;
-
                 return {
                     show: function (element) {
                         component = new Vue({
                             provide: {
-                                openmct,
-                                providedObject
+                                openmct
                             },
                             components: {
                                 FiltersView: FiltersView.default
@@ -59,8 +56,10 @@ define([
                         });
                     },
                     destroy: function () {
-                        component.$destroy();
-                        component = undefined;
+                        if (component) {
+                            component.$destroy();
+                            component = undefined;
+                        }
                     }
                 }
             },

src/plugins/flexibleLayout/components/flexibleLayout.vue

@@ -106,9 +106,6 @@
     .c-fl {
         @include abs();
         display: flex;
-        flex-direction: column; // TEMP: only needed to support temp-toolbar element
-
-        > * + * {  margin-top: $interiorMargin; }
 
         .temp-toolbar {
             flex: 0 0 auto;
@@ -116,7 +113,8 @@
 
         &__container-holder {
             display: flex;
-            flex: 1 1 100%; // Must needs to be 100% to work
+            flex: 1 1 100%; // Must be 100% to work
+            overflow: auto;
 
             // Columns by default
             flex-direction: row;
@@ -292,11 +290,6 @@
             margin-bottom: $interiorMargin;
         }
 
-        &__object-view {
-            flex: 1 1 auto;
-            overflow: auto;
-        }
-
         &__size-indicator {
             $size: 35px;
 
@@ -422,6 +415,7 @@ import Container from '../utils/container';
 import Frame from '../utils/frame';
 import ResizeHandle from  './resizeHandle.vue';
 import DropHint from './dropHint.vue';
+import RemoveAction from '../../remove/RemoveAction.js';
 
 const MIN_CONTAINER_SIZE = 5;
 
@@ -513,7 +507,7 @@ export default {
                 remove associated domainObjects from composition
             */
             container.frames.forEach(f => {
-                this.composition.remove({identifier: f.domainObjectIdentifier});
+                this.removeFromComposition(f.domainObjectIdentifier);
             });
 
             this.containers.splice(containerIndex, 1);
@@ -528,6 +522,7 @@ export default {
             }
 
             sizeToFill(this.containers);
+            this.setSelectionToParent();
             this.persist();
         },
         moveFrame(toContainerIndex, toFrameIndex, frameId, fromContainerIndex) {
@@ -561,20 +556,23 @@ export default {
         deleteFrame(frameId) {
             let container = this.containers
                 .filter(c => c.frames.some(f => f.id === frameId))[0];
-            let containerIndex = this.containers.indexOf(container);
             let frame = container
                 .frames
                 .filter((f => f.id === frameId))[0];
-            let frameIndex = container.frames.indexOf(frame);
 
-            /*
-                remove associated domainObject from composition
-            */
-            this.composition.remove({identifier: frame.domainObjectIdentifier});
-
-            container.frames.splice(frameIndex, 1);
-            sizeToFill(container.frames);
-            this.persist(containerIndex);
+            this.removeFromComposition(frame.domainObjectIdentifier)
+                .then(() => {
+                    sizeToFill(container.frames)
+                    this.setSelectionToParent();
+                });
+        },
+        removeFromComposition(identifier) {
+            return this.openmct.objects.get(identifier).then((childDomainObject) => {
+                this.RemoveAction.removeFromComposition(this.domainObject, childDomainObject);
+            });
+        },
+        setSelectionToParent() {
+            this.$el.click();
         },
         allowContainerDrop(event, index) {
             if (!event.dataTransfer.types.includes('containerid')) {
@@ -665,6 +663,8 @@ export default {
         this.composition.on('remove', this.removeChildObject);
         this.composition.on('add', this.addFrame);
 
+        this.RemoveAction = new RemoveAction(this.openmct);
+
         this.unobserve = this.openmct.objects.observe(this.domainObject, '*', this.updateDomainObject);
     },
     beforeDestroy() {

src/plugins/flexibleLayout/components/frame.vue

@@ -79,12 +79,14 @@ export default {
         },
         setSelection() {
             this.$nextTick(function () {
-                let childContext = this.$refs.objectFrame.getSelectionContext();
-                childContext.item = this.domainObject;
-                childContext.type = 'frame';
-                childContext.frameId = this.frame.id;
-                this.unsubscribeSelection = this.openmct.selection.selectable(
-                    this.$refs.frame, childContext, false);
+                if (this.$refs && this.$refs.objectFrame) {
+                    let childContext = this.$refs.objectFrame.getSelectionContext();
+                    childContext.item = this.domainObject;
+                    childContext.type = 'frame';
+                    childContext.frameId = this.frame.id;
+                    this.unsubscribeSelection = this.openmct.selection.selectable(
+                        this.$refs.frame, childContext, false);
+                }
             });
         },
         initDrag(event) {

src/plugins/flexibleLayout/components/resizeHandle.vue

@@ -79,10 +79,12 @@ export default {
     mounted() {
         document.addEventListener('dragstart', this.setDragging);
         document.addEventListener('dragend', this.unsetDragging);
+        document.addEventListener('drop', this.unsetDragging);
     },
     destroyed() {
         document.removeEventListener('dragstart', this.setDragging);
         document.removeEventListener('dragend', this.unsetDragging);
+        document.removeEventListener('drop', this.unsetDragging);
     }
 }
 </script>

src/plugins/flexibleLayout/toolbarProvider.js

@@ -27,28 +27,22 @@ function ToolbarProvider(openmct) {
         key: "flex-layout",
         description: "A toolbar for objects inside a Flexible Layout.",
         forSelection: function (selection) {
-            let context = selection[0].context;
+            let context = selection[0][0].context;
 
             return (context && context.type &&
                 (context.type === 'flexible-layout' || context.type === 'container' || context.type === 'frame'));
         },
         toolbar: function (selection) {
 
-            let primary = selection[0],
-                secondary = selection[1],
-                tertiary = selection[2],
+            let selectionPath = selection[0],
+                primary = selectionPath[0],
+                secondary = selectionPath[1],
+                tertiary = selectionPath[2],
                 deleteFrame,
                 toggleContainer,
                 deleteContainer,
                 addContainer,
-                toggleFrame,
-                separator;
-
-            separator = {
-                control: "separator",
-                domainObject: selection[0].context.item,
-                key: "separator"
-            };
+                toggleFrame;
 
             toggleContainer = {
                 control: 'toggle-button',
@@ -69,6 +63,12 @@ function ToolbarProvider(openmct) {
                 ]
             };
 
+            function getSeparator() {
+                return {
+                    control: "separator"
+                };
+            }
+
             if (primary.context.type === 'frame') {
                 let frameId = primary.context.frameId;
                 let layoutObject = tertiary.context.item;
@@ -77,11 +77,11 @@ function ToolbarProvider(openmct) {
                     .containers;
                 let container = containers
                     .filter(c => c.frames.some(f => f.id === frameId))[0];
-                let frame = container
+                let containerIndex = containers.indexOf(container);
+                let frame = container && container
                     .frames
                     .filter((f => f.id === frameId))[0];
-                let containerIndex = containers.indexOf(container);
-                let frameIndex = container.frames.indexOf(frame);
+                let frameIndex = container && container.frames.indexOf(frame);
 
                 deleteFrame = {
                     control: "button",
@@ -202,9 +202,9 @@ function ToolbarProvider(openmct) {
             let toolbar = [
                 toggleContainer,
                 addContainer,
-                toggleFrame ? separator: undefined,
+                toggleFrame ? getSeparator() : undefined,
                 toggleFrame,
-                deleteFrame || deleteContainer ? separator : undefined,
+                deleteFrame || deleteContainer ? getSeparator() : undefined,
                 deleteFrame,
                 deleteContainer
             ];

src/plugins/folderView/components/composition-loader.js

@@ -14,6 +14,7 @@ export default {
     },
     mounted() {
         this.composition = this.openmct.composition.get(this.domainObject);
+        this.keystring = this.openmct.objects.makeKeyString(this.domainObject.identifier);
         if (!this.composition) {
             return;
         }
@@ -34,7 +35,7 @@ export default {
             this.items.push({
                 model: child,
                 type: type.definition,
-                isAlias: this.domainObject.identifier.key !== child.location,
+                isAlias: this.keystring !== child.location,
                 objectPath: [child].concat(this.openmct.router.path),
                 objectKeyString: this.openmct.objects.makeKeyString(child.identifier)
             });

src/plugins/objectMigration/Migrations.js

@@ -71,7 +71,6 @@ define([
                         height: panel.dimensions[1],
                         x: panel.position[0],
                         y: panel.position[1],
-                        useGrid: true,
                         identifier: domainObject.identifier,
                         id: uuid(),
                         type: 'telemetry-view',
@@ -88,7 +87,6 @@ define([
                         height: panel.dimensions[1],
                         x: panel.position[0],
                         y: panel.position[1],
-                        useGrid: true,
                         identifier: domainObject.identifier,
                         id: uuid(),
                         type: 'subobject-view',
@@ -104,7 +102,7 @@ define([
             return migratedObject;
         }
 
-        function migrateFixedPositionConfiguration(elements, telemetryObjects) {
+        function migrateFixedPositionConfiguration(elements, telemetryObjects, gridSize) {
             const DEFAULT_STROKE = "transparent";
             const DEFAULT_SIZE = "13px";
             const DEFAULT_COLOR = "";
@@ -117,10 +115,16 @@ define([
                     y: element.y,
                     width: element.width,
                     height: element.height,
-                    useGrid: element.useGrid,
                     id: uuid()
                 };
 
+                if (!element.useGrid) {
+                    item.x = Math.round(item.x / gridSize[0]);
+                    item.y = Math.round(item.y / gridSize[1]);
+                    item.width = Math.round(item.width / gridSize[0]);
+                    item.height = Math.round(item.height / gridSize[1]);
+                }
+
                 if (element.type === "fixed.telemetry") {
                     item.type = "telemetry-view";
                     item.stroke = element.stroke || DEFAULT_STROKE;
@@ -192,10 +196,11 @@ define([
                         name: domainObject.name,
                         type: "layout"
                     };
+                    let gridSize = domainObject.layoutGrid || DEFAULT_GRID_SIZE;
                     let layoutType = openmct.types.get('layout');
                     layoutType.definition.initialize(newLayoutObject);
                     newLayoutObject.composition = domainObject.composition;
-                    newLayoutObject.configuration.layoutGrid = domainObject.layoutGrid || DEFAULT_GRID_SIZE;
+                    newLayoutObject.configuration.layoutGrid = gridSize;
 
                     let elements = domainObject.configuration['fixed-display'].elements;
                     let telemetryObjects = {};
@@ -211,7 +216,7 @@ define([
                     return Promise.all(promises)
                         .then(function () {
                             newLayoutObject.configuration.items =
-                                migrateFixedPositionConfiguration(elements, telemetryObjects);
+                                migrateFixedPositionConfiguration(elements, telemetryObjects, gridSize);
                             return newLayoutObject;
                         });
                 }

src/plugins/plot/res/templates/stacked-plot.html

@@ -43,12 +43,16 @@
     <div class="l-view-section">
         <div class="c-loading--overlay loading"
              ng-show="!!currentRequest.pending"></div>
-        <div class="gl-plot child-frame"
+        <div class="gl-plot child-frame u-inspectable"
             ng-repeat="telemetryObject in telemetryObjects"
             ng-class="{
                 's-status-timeconductor-unsynced': telemetryObject
                     .getCapability('status')
                     .get('timeconductor-unsynced')
+            }"
+            mct-selectable="{
+                item: telemetryObject.useCapability('adapter'),
+                oldItem: telemetryObject
             }">
             <mct-overlay-plot domain-object="telemetryObject"></mct-overlay-plot>
         </div>

src/plugins/plot/src/inspector/PlotOptionsController.js

@@ -70,12 +70,15 @@ define([
         this.listenTo(this.$scope, '$destroy', this.destroy, this);
         this.listenTo(config.series, 'add', this.addSeries, this);
         this.listenTo(config.series, 'remove', this.resetAllSeries, this);
+
         config.series.forEach(this.addSeries, this);
     };
 
     PlotOptionsController.prototype.addSeries = function (series, index) {
-        this.$scope.plotSeries[index] = series;
-        series.locateOldObject(this.$scope.domainObject);
+        this.$timeout(function () {
+            this.$scope.plotSeries[index] = series;
+            series.locateOldObject(this.$scope.domainObject);
+        }.bind(this));
     };
 
     PlotOptionsController.prototype.resetAllSeries = function (series, index) {

src/plugins/plot/src/telemetry/StackedPlotController.js

@@ -79,6 +79,15 @@ define([
                     $scope.$broadcast('plot:tickWidth', _.max(tickWidthMap));
                 }
             }
+
+            function compositionReorder(reorderPlan) {
+                let oldComposition = telemetryObjects.slice();
+
+                reorderPlan.forEach((reorder) => {
+                    telemetryObjects[reorder.newIndex] = oldComposition[reorder.oldIndex];
+                });
+            }
+
             thisRequest.pending += 1;
             openmct.objects.get(domainObject.getId())
                 .then(function (obj) {
@@ -89,10 +98,12 @@ define([
                     composition = openmct.composition.get(obj);
                     composition.on('add', addChild);
                     composition.on('remove', removeChild);
+                    composition.on('reorder', compositionReorder);
                     composition.load();
                     unlisten = function () {
                         composition.off('add', addChild);
                         composition.off('remove', removeChild);
+                        composition.off('reorder', compositionReorder);
                     };
                 });
         }

src/plugins/remove/RemoveAction.js

@@ -85,6 +85,10 @@ export default class RemoveAction {
         );
 
         this.openmct.objects.mutate(parent, 'composition', composition);
+
+        if (this.inNavigationPath(child) && this.openmct.editor.isEditing()) {
+            this.openmct.editor.save();
+        }
     }
 
     appliesTo(objectPath) {

src/plugins/summaryWidget/src/ConditionManager.js

@@ -237,6 +237,7 @@ define ([
         });
         delete this.compositionObjs[objectId];
         this.subscriptions[objectId](); //unsubscribe from telemetry source
+        delete this.subscriptions[objectId];
         this.eventEmitter.emit('remove', identifier);
 
         if (_.isEmpty(this.compositionObjs)) {

src/plugins/summaryWidget/src/telemetry/SummaryWidgetTelemetryProvider.js

@@ -43,7 +43,7 @@ define([
         return evaluator.requestLatest(options)
             .then(function (latestDatum) {
                 this.pool.release(evaluator);
-                return [latestDatum];
+                return latestDatum ? [latestDatum] : [];
             }.bind(this));
     };
 

src/plugins/summaryWidget/src/views/SummaryWidgetView.js

@@ -52,7 +52,10 @@ define([
             strategy: 'latest',
             size: 1
         }).then(function (results) {
-            if (this.destroyed || this.hasUpdated || this.renderTracker !== renderTracker) {
+            if (this.destroyed ||
+                this.hasUpdated ||
+                this.renderTracker !== renderTracker ||
+                results.length === 0) {
                 return;
             }
             this.updateState(results[results.length - 1]);

src/plugins/tabs/components/tabs.vue

@@ -7,7 +7,8 @@
             }">
             <div class="c-drop-hint"
                  @drop="onDrop"
-                 ref="dropHint">
+                 @dragenter="dragenter"
+                 @dragleave="dragleave">
             </div>
             <div class="c-tabs-view__empty-message"
                  v-if="!tabsList.length > 0">Drag objects here to add them to this view.</div>
@@ -25,7 +26,7 @@
         <div class="c-tabs-view__object-holder"
             v-for="(tab, index) in tabsList"
             :key="index"
-            :class="{'invisible': !isCurrent(tab)}">
+            :class="{'c-tabs-view__object-holder--hidden': !isCurrent(tab)}">
             <div v-if="currentTab"
                  class="c-tabs-view__object-name l-browse-bar__object-name--w"
                  :class="currentTab.type.definition.cssClass">
@@ -68,6 +69,14 @@
             flex: 1 1 auto;
             display: flex;
             flex-direction: column;
+
+            &--hidden {
+                height: 1000px;
+                width: 1000px;
+                position: absolute;
+                left: -9999px;
+                top: -9999px;
+            }
         }
 
         &__object-name {
@@ -78,7 +87,10 @@
         }
 
         &__object {
+            display: flex;
+            flex-flow: column nowrap;
             flex: 1 1 auto;
+            height: 0; // Chrome 73 oveflow bug fix
         }
 
         &__empty-message {
@@ -186,13 +198,6 @@ export default {
 
         document.addEventListener('dragstart', this.dragstart);
         document.addEventListener('dragend', this.dragend);
-
-        let dropHint = this.$refs.dropHint;
-
-        if (dropHint) {
-            dropHint.addEventListener('dragenter', this.dragenter);
-            dropHint.addEventListener('dragleave', this.dragleave);
-        }
     },
     destroyed() {
         this.composition.off('add', this.addItem);
@@ -201,12 +206,6 @@ export default {
 
         document.removeEventListener('dragstart', this.dragstart);
         document.removeEventListener('dragend', this.dragend);
-    },
-    beforeDestroy() {
-        let dropHint = this.$refs.dropHint;
-
-        dropHint.removeEventListener('dragenter', this.dragenter);
-        dropHint.removeEventListener('dragleave', this.dragleave);
     }
 }
 </script>

src/plugins/tabs/plugin.js

@@ -31,6 +31,7 @@ define([
 
             openmct.types.addType('tabs', {
                 name: "Tabs View",
+                description: 'Add multiple objects of any type to this view, and quickly navigate between them with tabs',
                 creatable: true,
                 cssClass: 'icon-tabs-view',
                 initialize(domainObject) {

src/plugins/telemetryTable/TableConfigurationViewProvider.js

@@ -37,15 +37,15 @@ define([
             key: 'table-configuration',
             name: 'Telemetry Table Configuration',
             canView: function (selection) {
-                if (selection.length === 0) {
+                if (selection.length === 0 || selection[0].length === 0) {
                     return false;
                 }
-                let object = selection[0].context.item;
+                let object = selection[0][0].context.item;
                 return object && object.type === 'table';
             },
             view: function (selection) {
                 let component;
-                let domainObject = selection[0].context.item;
+                let domainObject = selection[0][0].context.item;
                 let tableConfiguration = new TelemetryTableConfiguration(domainObject, openmct);
                 return {
                     show: function (element) {
@@ -62,8 +62,11 @@ define([
                         });
                     },
                     destroy: function () {
-                        component.$destroy();
-                        component = undefined;
+                        if (component) {
+                            component.$destroy();
+                            component = undefined;
+                        }
+
                         tableConfiguration = undefined;
                     }
                 }

src/plugins/telemetryTable/TelemetryTable.js

@@ -137,12 +137,17 @@ define([
             let requestOptions = this.buildOptionsFromConfiguration(telemetryObject);
             return this.openmct.telemetry.request(telemetryObject, requestOptions)
                 .then(telemetryData => {
+                    //Check that telemetry object has not been removed since telemetry was requested.
+                    if (!this.telemetryObjects.includes(telemetryObject)) {
+                        return;
+                    }
                     let keyString = this.openmct.objects.makeKeyString(telemetryObject.identifier);
                     let columnMap = this.getColumnMapForObject(keyString);
                     let limitEvaluator = this.openmct.telemetry.limitEvaluator(telemetryObject);
 
                     let telemetryRows = telemetryData.map(datum => new TelemetryTableRow(datum, columnMap, keyString, limitEvaluator));
                     this.boundedRows.add(telemetryRows);
+                }).finally(() => {
                     this.decrementOutstandingRequests();
                 });
         }
@@ -193,6 +198,10 @@ define([
             let limitEvaluator = this.openmct.telemetry.limitEvaluator(telemetryObject);
 
             this.subscriptions[keyString] = this.openmct.telemetry.subscribe(telemetryObject, (datum) => {
+                //Check that telemetry object has not been removed since telemetry was requested.
+                if (!this.telemetryObjects.includes(telemetryObject)) {
+                    return;
+                }
                 this.boundedRows.add(new TelemetryTableRow(datum, columnMap, keyString, limitEvaluator));
             }, subscribeOptions);
         }

src/plugins/telemetryTable/components/table-column-header.vue

@@ -34,39 +34,13 @@
             isSortable ? 'is-sortable' : '', 
             isSortable && sortOptions.key === headerKey ? 'is-sorting' : '', 
             isSortable && sortOptions.direction].join(' ')">
-            <div v-if="isEditing" class="c-telemetry-table__resize-hotzone c-telemetry-table__resize-hotzone--right"
+            <div class="c-telemetry-table__resize-hitarea"
                 @mousedown="resizeColumnStart"
             ></div>
             <slot></slot>
         </div>
 </th>
 </template>
-<style lang="scss">
-    @import "~styles/sass-base";
-    @import "~styles/table";
-
-    $hotzone-size: 6px;
-
-    .c-telemetry-table__headers__content {
-        width: 100%;
-    }
-
-    .c-table.c-telemetry-table {
-        .c-telemetry-table__resize-hotzone {
-            display: block;
-            position: absolute;
-            height: 100%;
-            padding: 0;
-            margin: 0;
-            width: $hotzone-size;
-            min-width: $hotzone-size;
-            cursor: col-resize;
-            border: none;
-            right: 0px;
-            margin-right: -$tabularTdPadLR - 1 - $hotzone-size / 2;
-        }
-    }
-</style>
 <script>
 import _ from 'lodash';
 const MOVE_COLUMN_DT_TYPE = 'movecolumnfromindex';

src/plugins/telemetryTable/components/table.vue

@@ -34,7 +34,7 @@
     <div class="c-telemetry-table__headers-w js-table__headers-w" ref="headersTable" :style="{ 'max-width': widthWithScroll}">
         <table class="c-table__headers c-telemetry-table__headers">
             <thead>
-                <tr class="c-telemetry-table__headers__name">
+                <tr class="c-telemetry-table__headers__labels">
                     <table-column-header
                         v-for="(title, key, headerIndex) in headers"
                         :key="key"
@@ -49,7 +49,8 @@
                         :columnWidth="columnWidths[key]"
                         :sortOptions="sortOptions"
                         :isEditing="isEditing"
-                        >{{title}}</table-column-header>
+                    ><span class="c-telemetry-table__headers__label">{{title}}</span>
+                    </table-column-header>
                 </tr>
                 <tr class="c-telemetry-table__headers__filter">
                     <table-column-header
@@ -159,6 +160,32 @@
             thead {
                 display: block;
             }
+
+            &__labels {
+                // Top row, has labels
+                .c-telemetry-table__headers__content {
+                    // Holds __label, sort indicator and resize-hitarea
+                    display: flex;
+                    align-items: center;
+                    justify-content: center;
+                    width: 100%;
+                }
+            }
+        }
+
+        &__headers__label {
+            overflow: hidden;
+            flex: 0 1 auto;
+        }
+
+        &__resize-hitarea {
+            // In table-column-header.vue
+            @include abs();
+            display: none; // Set to display: block in .is-editing section below
+            left: auto; right: -1 * $tabularTdPadLR;
+            width: $tableResizeColHitareaD;
+            cursor: col-resize;
+            transform: translateX(50%); // Move so this element sits over border between columns
         }
 
         /******************************* ELEMENTS */
@@ -221,7 +248,7 @@
 
     /******************************* EDITING */
     .is-editing {
-        .c-telemetry-table__headers__name {
+        .c-telemetry-table__headers__labels {
             th[draggable],
             th[draggable] > * {
                 cursor: move;
@@ -233,6 +260,10 @@
                 > * { background: $b; }
             }
         }
+
+        .c-telemetry-table__resize-hitarea {
+            display: block;
+        }
     }
 
     /******************************* LEGACY */
@@ -557,13 +588,18 @@ export default {
             let el = this.$el;
             let width = el.clientWidth;
             let height = el.clientHeight;
+            let scrollTop = this.scrollable.scrollTop;
 
             this.resizePollHandle = setInterval(() => {
                 if ((el.clientWidth !== width || el.clientHeight !== height) && this.isAutosizeEnabled) {
                     this.calculateTableSize();
+                    // On some resize events scrollTop is reset to 0. Possibly due to a transition we're using?
+                    // Need to preserve scroll position in this case.
+                    this.scrollable.scrollTop = scrollTop;
                     width = el.clientWidth;
                     height = el.clientHeight;
                 }
+                scrollTop = this.scrollable.scrollTop;
             }, RESIZE_POLL_INTERVAL);
         },
 

src/selection/Selection.js

@@ -20,7 +20,15 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 
-define(['EventEmitter'], function (EventEmitter) {
+define(
+    [
+        'EventEmitter',
+        'lodash'
+    ],
+    function (
+        EventEmitter,
+        _
+) {
 
     /**
      * Manages selection state for Open MCT
@@ -47,21 +55,87 @@ define(['EventEmitter'], function (EventEmitter) {
      * Selects the selectable object and emits the 'change' event.
      *
      * @param {object} selectable an object with element and context properties
+     * @param {Boolean} isMultiSelectEvent flag indication shift key is pressed or not
      * @private
      */
-    Selection.prototype.select = function (selectable) {
+    Selection.prototype.select = function (selectable, isMultiSelectEvent) {
         if (!Array.isArray(selectable)) {
             selectable = [selectable];
         }
 
-        if (this.selected[0] && this.selected[0].element) {
-            this.selected[0].element.removeAttribute('s-selected');
+        let multiSelect = isMultiSelectEvent &&
+            this.parentSupportsMultiSelect(selectable) &&
+            this.isPeer(selectable) &&
+            !this.selectionContainsParent(selectable);
+
+        if (multiSelect) {
+            this.handleMultiSelect(selectable);
+        } else {
+            this.setSelectionStyles(selectable);
+            this.selected = [selectable];
         }
 
-        if (this.selected[1] && this.selected[1].element) {
-            this.selected[1].element.removeAttribute('s-selected-parent');
+        this.emit('change', this.selected);
+    };
+
+    /**
+     * @private
+     */
+    Selection.prototype.handleMultiSelect = function (selectable) {
+        if (this.elementSelected(selectable)) {
+            this.remove(selectable);
+        } else {
+            this.addSelectionAttributes(selectable);
+            this.selected.push(selectable);
+        }
+    };
+
+    /**
+     * @private
+     */
+    Selection.prototype.elementSelected = function (selectable) {
+        return this.selected.some(selectionPath => _.isEqual(selectionPath, selectable));
+    };
+
+    /**
+     * @private
+     */
+    Selection.prototype.remove = function (selectable) {
+        this.selected = this.selected.filter(selectionPath => !_.isEqual(selectionPath, selectable));
+
+        if (this.selected.length === 0) {
+            this.removeSelectionAttributes(selectable);
+            selectable[1].element.click(); // Select the parent if there is no selection.
+        } else {
+            this.removeSelectionAttributes(selectable, true);
+        }
+    };
+
+    /**
+     * @private
+     */
+     Selection.prototype.setSelectionStyles = function (selectable) {
+        this.selected.map(selectionPath => {
+            this.removeSelectionAttributes(selectionPath);
+        });
+        this.addSelectionAttributes(selectable);
+     };
+
+    Selection.prototype.removeSelectionAttributes = function (selectionPath, keepParentStyle) {
+        if (selectionPath[0] && selectionPath[0].element) {
+            selectionPath[0].element.removeAttribute('s-selected');
         }
 
+        if (selectionPath[1] && selectionPath[1].element && !keepParentStyle) {
+            selectionPath[1].element.removeAttribute('s-selected-parent');
+        }
+    };
+
+    /*
+     * Adds selection attributes to the selected element and its parent.
+     * @private
+     */
+    Selection.prototype.addSelectionAttributes = function (selectable) {
         if (selectable[0] && selectable[0].element) {
             selectable[0].element.setAttribute('s-selected', "");
         }
@@ -69,16 +143,36 @@ define(['EventEmitter'], function (EventEmitter) {
         if (selectable[1] && selectable[1].element) {
             selectable[1].element.setAttribute('s-selected-parent', "");
         }
+    };
 
-        this.selected = selectable;
-        this.emit('change', this.selected);
+    /**
+     * @private
+     */
+    Selection.prototype.parentSupportsMultiSelect = function (selectable) {
+        return selectable[1] && selectable[1].context.supportsMultiSelect;
+    };
+
+    /**
+     * @private
+     */
+    Selection.prototype.selectionContainsParent = function (selectable) {
+        return this.selected.some(selectionPath => _.isEqual(selectionPath[0], selectable[1]));
+    };
+
+    /**
+     * @private
+     */
+    Selection.prototype.isPeer = function (selectable) {
+        return this.selected.some(selectionPath => _.isEqual(selectionPath[1], selectable[1]));
     };
 
     /**
      * @private
      */
     Selection.prototype.capture = function (selectable) {
-        if (!this.capturing) {
+        let capturingContainsSelectable = this.capturing && this.capturing.includes(selectable);
+
+        if (!this.capturing || capturingContainsSelectable) {
             this.capturing = [];
         }
 
@@ -88,13 +182,14 @@ define(['EventEmitter'], function (EventEmitter) {
     /**
      * @private
      */
-    Selection.prototype.selectCapture = function (selectable) {
+    Selection.prototype.selectCapture = function (selectable, event) {
         if (!this.capturing) {
             return;
         }
 
-        this.select(this.capturing.reverse());
+        let reversedCapturing = this.capturing.reverse();
         delete this.capturing;
+        this.select(reversedCapturing, event.shiftKey);
     };
 
     /**
@@ -112,7 +207,7 @@ define(['EventEmitter'], function (EventEmitter) {
      * @public
      */
     Selection.prototype.selectable = function (element, context, select) {
-        var selectable = {
+        let selectable = {
             context: context,
             element: element
         };

src/styles-new/_about.scss

@@ -54,10 +54,11 @@
 
     &:after {
         // App logo
-        top: 0;
-        right: 15%;
-        bottom: 0;
-        left: 15%;
+        $d: 25%;
+        top: $d;
+        right: $d;
+        bottom: $d;
+        left: $d;
     }
 }
 
@@ -75,12 +76,20 @@
 
     &__image,
     &__text {
-        height: 50%;
-        flex: 1 1 0;
+        flex: 1 1 auto;
+    }
+
+    &__image {
+        height: 35%;
     }
 
     &__text {
+        height: 65%;
         overflow: auto;
+        > * + * {
+            border-top: 1px solid $colorInteriorBorder;
+            margin-top: 1em;
+        }
     }
 
     &--licenses {
@@ -107,7 +116,7 @@
 
     h1, h2, h3 {
         font-weight: normal;
-        margin-bottom: 1em;
+        margin-bottom: .25em;
     }
 
     h1 {

src/styles-new/_constants-espresso.scss

@@ -79,7 +79,7 @@ $colorKeyHov: #26d8ff;
 $colorKeyFilter: invert(36%) sepia(76%) saturate(2514%) hue-rotate(170deg) brightness(99%) contrast(101%);
 $colorKeyFilterHov: invert(63%) sepia(88%) saturate(3029%) hue-rotate(154deg) brightness(101%) contrast(100%);
 $colorKeySelectedBg: $colorKey;
-$uiColor: #00b2ff; // Resize bars, splitter bars, etc.
+$uiColor: #0093ff; // Resize bars, splitter bars, etc.
 $colorInteriorBorder: rgba($colorBodyFg, 0.2);
 $colorA: #ccc;
 $colorAHov: #fff;
@@ -143,6 +143,8 @@ $browseSelectedBorder: 1px solid rgba($colorBodyFg, 0.4);
 
 /************************************************** EDITING */
 $editUIColor: $uiColor; // Base color
+$editUIColorBg: $editUIColor;
+$editUIColorFg: #fff;
 $editUIColorHov: pullForward(saturate($uiColor, 10%), 20%); // Hover color when $editUIColor is applied as a base color
 $editUIBaseColor: #344b8d; // Base color, toolbar bg
 $editUIBaseColorHov: pullForward($editUIBaseColor, 20%);
@@ -159,8 +161,8 @@ $editFrameBorderHov: 1px solid $editFrameColorHov; // Hover on selectable frames
 $editFrameColorSelected: #ccc; // Border of selected frames
 $editFrameColorHandleBg: $colorBodyBg; // Resize handle 'offset' color to make handle standout
 $editFrameColorHandleFg: $editFrameColorSelected; // Resize handle main color
-$editFrameSelectedShdw: rgba(black, 0.5) 0 1px 10px 1px;
-$editFrameSelectedBorder: 1px dashed $editFrameColorSelected; // Selected frame element
+$editFrameSelectedShdw: rgba(black, 0.4) 0 1px 5px 1px;
+$editFrameSelectedBorder: 1px solid $editFrameColorHov; // Selected frame element
 $editFrameMovebarColorBg: $editFrameColor; // Movebar bg color
 $editFrameMovebarColorFg: pullForward($editFrameMovebarColorBg, 20%);  // Grippy lines, container size text
 $editFrameHovMovebarColorBg: pullForward($editFrameMovebarColorBg, 10%); // Hover style
@@ -168,6 +170,7 @@ $editFrameHovMovebarColorFg: pullForward($editFrameMovebarColorFg, 10%);
 $editFrameSelectedMovebarColorBg: pullForward($editFrameMovebarColorBg, 15%); // Selected style
 $editFrameSelectedMovebarColorFg: pullForward($editFrameMovebarColorFg, 15%);
 $editFrameMovebarH: 10px; // Height of move bar in layout frame
+$editMarqueeBorder: 1px dashed $editFrameColorSelected;
 
 // Icons
 $colorIconAlias: #4af6f3;
@@ -224,6 +227,8 @@ $menuItemPad: $interiorMargin, floor($interiorMargin * 1.25);
 $paletteItemBorderOuterColorSelected: black;
 $paletteItemBorderInnerColorSelected: white;
 $paletteItemBorderInnerColor: rgba($paletteItemBorderOuterColorSelected, 0.3);
+$mixedSettingBg: (transparent rgba($editUIBaseColorHov, 0.7)); // Used in .c-click-icon--mixed
+$mixedSettingBgSize: 5px;
 
 // Forms
 $colorCheck: $colorKey;
@@ -385,8 +390,10 @@ $colorLoadingFg: #776ba2;
 $colorLoadingBg: rgba($colorLoadingFg, 0.1);
 
 // Transitions
-$transIn: all 50ms ease-in-out;
-$transOut: all 250ms ease-in-out;
+$transInTime: 50ms;
+$transOutTime: 250ms;
+$transIn: all $transInTime ease-in-out;
+$transOut: all $transOutTime ease-in-out;
 $transInBounce: all 200ms cubic-bezier(.47,.01,.25,1.5);
 $transInBounceBig: all 300ms cubic-bezier(.2,1.6,.6,3);
 

src/styles-new/_constants-maelstrom.scss

@@ -147,6 +147,8 @@ $browseSelectedBorder: 1px solid rgba($colorBodyFg, 0.4);
 
 /************************************************** EDITING */
 $editUIColor: $uiColor; // Base color
+$editUIColorBg: $editUIColor;
+$editUIColorFg: #fff;
 $editUIColorHov: pullForward(saturate($uiColor, 10%), 20%); // Hover color when $editUIColor is applied as a base color
 $editUIBaseColor: #344b8d; // Base color, toolbar bg
 $editUIBaseColorHov: pullForward($editUIBaseColor, 20%);
@@ -163,8 +165,8 @@ $editFrameBorderHov: 1px solid $editFrameColorHov; // Hover on selectable frames
 $editFrameColorSelected: #ccc; // Border of selected frames
 $editFrameColorHandleBg: $colorBodyBg; // Resize handle 'offset' color to make handle standout
 $editFrameColorHandleFg: $editFrameColorSelected; // Resize handle main color
-$editFrameSelectedShdw: rgba(black, 0.5) 0 1px 10px 1px;
-$editFrameSelectedBorder: 1px dashed $editFrameColorSelected; // Selected frame element
+$editFrameSelectedShdw: rgba(black, 0.4) 0 1px 5px 1px;
+$editFrameSelectedBorder: 1px solid $editFrameColorHov; // Selected frame element
 $editFrameMovebarColorBg: $editFrameColor; // Movebar bg color
 $editFrameMovebarColorFg: pullForward($editFrameMovebarColorBg, 20%);  // Grippy lines, container size text
 $editFrameHovMovebarColorBg: pullForward($editFrameMovebarColorBg, 10%); // Hover style
@@ -172,6 +174,7 @@ $editFrameHovMovebarColorFg: pullForward($editFrameMovebarColorFg, 10%);
 $editFrameSelectedMovebarColorBg: pullForward($editFrameMovebarColorBg, 15%); // Selected style
 $editFrameSelectedMovebarColorFg: pullForward($editFrameMovebarColorFg, 15%);
 $editFrameMovebarH: 10px; // Height of move bar in layout frame
+$editMarqueeBorder: 1px dashed $editFrameColorSelected;
 
 // Icons
 $colorIconAlias: #4af6f3;
@@ -228,6 +231,8 @@ $menuItemPad: $interiorMargin, floor($interiorMargin * 1.25);
 $paletteItemBorderOuterColorSelected: black;
 $paletteItemBorderInnerColorSelected: white;
 $paletteItemBorderInnerColor: rgba($paletteItemBorderOuterColorSelected, 0.3);
+$mixedSettingBg: (transparent rgba($editUIBaseColorHov, 0.7)); // Used in .c-click-icon--mixed
+$mixedSettingBgSize: 5px;
 
 // Forms
 $colorCheck: $colorKey;
@@ -389,8 +394,10 @@ $colorLoadingFg: #776ba2;
 $colorLoadingBg: rgba($colorLoadingFg, 0.1);
 
 // Transitions
-$transIn: all 50ms ease-in-out;
-$transOut: all 250ms ease-in-out;
+$transInTime: 50ms;
+$transOutTime: 250ms;
+$transIn: all $transInTime ease-in-out;
+$transOut: all $transOutTime ease-in-out;
 $transInBounce: all 200ms cubic-bezier(.47,.01,.25,1.5);
 $transInBounceBig: all 300ms cubic-bezier(.2,1.6,.6,3);
 

src/styles-new/_constants-snow.scss

@@ -143,6 +143,8 @@ $browseSelectedBorder: 1px solid rgba($colorBodyFg, 0.4);
 
 /************************************************** EDITING */
 $editUIColor: $uiColor; // Base color
+$editUIColorBg: $editUIColor;
+$editUIColorFg: #fff;
 $editUIColorHov: pullForward(saturate($uiColor, 10%), 20%); // Hover color when $editUIColor is applied as a base color
 $editUIBaseColor: #cae1ff; // Base color, toolbar bg
 $editUIBaseColorHov: pushBack($editUIBaseColor, 20%);
@@ -159,7 +161,7 @@ $editFrameBorderHov: 1px solid $editFrameColorHov; // Hover on selectable frames
 $editFrameColorSelected: #333; // Border of selected frames
 $editFrameColorHandleBg: $colorBodyBg; // Resize handle 'offset' color to make handle standout
 $editFrameColorHandleFg: $editFrameColorSelected; // Resize handle main color
-$editFrameSelectedShdw: rgba(black, 0.5) 0 1px 10px 1px;
+$editFrameSelectedShdw: rgba(black, 0.5) 0 1px 5px 2px;
 $editFrameSelectedBorder: 1px dashed $editFrameColorSelected; // Selected frame element
 $editFrameMovebarColorBg: $editFrameColor; // Movebar bg color
 $editFrameMovebarColorFg: pullForward($editFrameMovebarColorBg, 20%);  // Grippy lines, container size text
@@ -168,6 +170,7 @@ $editFrameHovMovebarColorFg: pullForward($editFrameMovebarColorFg, 10%);
 $editFrameSelectedMovebarColorBg: pullForward($editFrameMovebarColorBg, 15%); // Selected style
 $editFrameSelectedMovebarColorFg: pullForward($editFrameMovebarColorFg, 15%);
 $editFrameMovebarH: 10px; // Height of move bar in layout frame
+$editMarqueeBorder: 1px dashed $editFrameColorSelected;
 
 // Icons
 $colorIconAlias: #4af6f3;
@@ -206,7 +209,7 @@ $colorDisclosureCtrlHov: rgba($colorBodyFg, 0.7);
 $btnStdH: 24px;
 $colorCursorGuide: rgba(black, 0.6);
 $shdwCursorGuide: rgba(white, 0.4) 0 0 2px;
-$colorLocalControlOvrBg: rgba($colorBodyBg, 0.8);
+$colorLocalControlOvrBg: rgba($colorBodyFg, 0.8);
 
 // Menus
 $colorMenuBg: pushBack($colorBodyBg, 10%);
@@ -224,6 +227,8 @@ $menuItemPad: $interiorMargin, floor($interiorMargin * 1.25);
 $paletteItemBorderOuterColorSelected: black;
 $paletteItemBorderInnerColorSelected: white;
 $paletteItemBorderInnerColor: rgba($paletteItemBorderOuterColorSelected, 0.3);
+$mixedSettingBg: (transparent rgba($editUIBaseColorHov, 0.9)); // Used in .c-click-icon--mixed
+$mixedSettingBgSize: 10px;
 
 // Forms
 $colorCheck: $colorKey;
@@ -242,8 +247,8 @@ $colorInputPlaceholder: pushBack($colorBodyFg, 20%);
 $colorFormText: pushBack($colorBodyFg, 10%);
 $colorInputIcon: pushBack($colorBodyFg, 25%);
 $colorFieldHint: pullForward($colorBodyFg, 40%);
-$shdwInput: inset rgba(black, 0.7) 0 0 1px;
-$shdwInputHov: inset rgba(black, 0.7) 0 0 2px;
+$shdwInput: inset rgba(black, 0.5) 0 0 2px;
+$shdwInputHov: inset rgba(black, 0.8) 0 0 2px;
 $shdwInputFoc: inset rgba(black, 0.8) 0 0.25px 3px;
 $formTBPad: $interiorMargin;
 $formLRPad: $interiorMargin;
@@ -385,8 +390,10 @@ $colorLoadingFg: #776ba2;
 $colorLoadingBg: rgba($colorLoadingFg, 0.1);
 
 // Transitions
-$transIn: all 50ms ease-in-out;
-$transOut: all 250ms ease-in-out;
+$transInTime: 50ms;
+$transOutTime: 250ms;
+$transIn: all $transInTime ease-in-out;
+$transOut: all $transOutTime ease-in-out;
 $transInBounce: all 200ms cubic-bezier(.47,.01,.25,1.5);
 $transInBounceBig: all 300ms cubic-bezier(.2,1.6,.6,3);
 

src/styles-new/_constants.scss

@@ -28,6 +28,7 @@ $dirImgs: 'images/';
 $controlFadeMs: 100ms;
 $browseToEditAnimMs: 400ms;
 $editBorderPulseMs: 500ms;
+$moveBarOutDelay: 500ms;
 
 /************************** SPATIAL */
 $interiorMarginSm: 3px;
@@ -84,6 +85,8 @@ $waitSpinnerTreeBorderW: 3px;
 /*************** Messages */
 $messageIconD: 80px;
 $messageListIconD: 32px;
+/*************** Tables */
+$tableResizeColHitareaD: 6px;
 
 /************************** MOBILE */
 $mobileMenuIconD: 24px; // Used

src/styles-new/_controls.scss

@@ -85,6 +85,15 @@ button {
         margin-left: $interiorMargin;
     }
 
+    $c1: nth($mixedSettingBg, 1);
+    $c2: nth($mixedSettingBg, 2);
+    $mixedBgD: $mixedSettingBgSize $mixedSettingBgSize;
+
+    &--mixed {
+        // E.g. click-icons in toolbar that apply to multiple selected items with different settings
+        @include bgStripes2Color($c1, $c2, $bgSize: $mixedBgD);
+    }
+
     &--swatched {
         // Color control, show swatch element
         display: flex;
@@ -93,9 +102,9 @@ button {
         justify-content: center;
 
         > [class*='swatch'] {
-            box-shadow: inset rgba(black, 0.2) 0 0 1px;
+            box-shadow: inset rgba($editUIBaseColorFg, 0.2) 0 0 0 1px;
             flex: 0 0 auto;
-            height: 4px;
+            height: 5px;
             width: 100%;
             margin-top: 1px;
         }
@@ -105,6 +114,13 @@ button {
             flex: 1 1 auto;
             font-size: 1.1em;
         }
+
+        &--mixed {
+            // Styling for swatched buttons when settings are mixed
+            > [class*='swatch'] {
+                @include bgStripes2Color($c1, $c2, $bgSize: $mixedBgD);
+            }
+        }
     }
 }
 
@@ -148,8 +164,6 @@ button {
             display: block;
             font-family: symbolsfont;
             font-size: 1rem * $s;
-            transform-origin: center;
-            transition: $transOut;
         }
     }
 
@@ -571,6 +585,10 @@ select {
         margin-left: 2px;
     }
 
+    &__button {
+
+    }
+
     &__separator {
         @include cToolbarSeparator();
     }
@@ -721,6 +739,7 @@ input[type="range"] {
     }
 }
 
+/******************************************************** LOCAL CONTROLS */
 .h-local-controls {
     // Holder for local controls
     &--horz {

src/styles-new/_legacy-plots.scss

@@ -51,6 +51,22 @@ mct-plot {
     }
 }
 
+.is-editing {
+    .gl-plot.child-frame {
+        &:hover {
+            background: rgba($editUIColorBg, 0.1);
+            box-shadow: inset rgba($editUIColorBg, 0.8) 0 0 0 1px;
+        }
+
+        &[s-selected] {
+            border: 1px solid $editUIColorFg !important;
+            color: $editUIColorFg !important;
+            box-shadow: $editFrameSelectedShdw;
+            z-index: 2;
+        }
+    }
+}
+
 .gl-plot {
     color: $colorPlotFg;
     display: flex;
@@ -548,3 +564,10 @@ mct-plot {
         top: 0; bottom: 0;
     }
 }
+
+.s-status-timeconductor-unsynced {
+    .t-object-alert.t-alert-unsynced {
+        @extend .icon-alert-triangle;
+        color: $colorPausedBg;
+    }
+}

src/styles-new/_legacy.scss

@@ -482,6 +482,8 @@ body.mobile.phone {
 
     .widget-edit-holder {
         display: flex; // Overrides `display: none` during Browse mode
+        flex: 1 1 auto;
+
         .flex-accordion-holder {
             // Needed because otherwise accordion elements "creep" when contents expand and contract
             display: block !important;
@@ -497,12 +499,6 @@ body.mobile.phone {
                 // Test data is expanded and rules are collapsed
                 // Make text data take up all the vertical space
                 .flex-accordion-holder { display: flex; }
-                .widget-test-data {
-                    flex-grow: 999999;
-                }
-                .w-widget-test-data-items {
-                    max-height: inherit;
-                }
             }
         }
         &.expanded-widget-rules {

src/styles-new/_mixins.scss

@@ -108,7 +108,7 @@
 }
 
 @mixin bgStripes($c: yellow, $a: 0.1, $bgsize: 5px, $angle: 90deg) {
-    background-image: linear-gradient($angle,
+    background: linear-gradient($angle,
         rgba($c, $a) 25%, transparent 25%,
         transparent 50%, rgba($c, $a) 50%,
         rgba($c, $a) 75%, transparent 75%,
@@ -117,6 +117,16 @@
     background-size: $bgsize $bgsize;
 }
 
+@mixin bgStripes2Color($c1, $c2, $bgSize, $angle: -45deg) {
+    background: linear-gradient(-45deg,
+            $c1 0%, $c1 25%,
+            $c2 25%, $c2 50%,
+            $c1 50%, $c1 75%,
+            $c2 75%, $c2 100%
+    ) repeat;
+    background-size: $bgSize;
+}
+
 @mixin disabled() {
     opacity: $controlDisabledOpacity;
     pointer-events: none !important;
@@ -415,12 +425,13 @@
     // Background is displayed on hover
     // Padding is included to facilitate a bigger hit area
     // Make the icon bigger relative to its container
+    $pLR: 4px;
+    $pTB: 4px;
+
     @include cControl();
     background: none;
     box-shadow: none;
     cursor: pointer;
-    $pLR: 4px;
-    $pTB: 4px;
     transition: $transOut;
     border-radius: $controlCr;
     padding: $pTB $pLR;
@@ -564,7 +575,6 @@
 @mixin test($c: deeppink, $a: 0.3) {
     background: rgba($c, $a) !important;
     background-color: rgba($c, $a) !important;
-    box-shadow: deeppink 0 0 10px 1px !important;
 }
 
 

src/styles-new/_status.scss

@@ -20,19 +20,38 @@
  * at runtime from the About dialog for additional information.
  *****************************************************************************/
 /*************************************************** MIXINS */
-@mixin statusStyle($bg, $fg, $ic) {
-    background: $bg !important;
-    background-color: $bg !important;
-    color: $fg !important;
+@mixin statusStyle($bg, $fg, $imp: false) {
+    $impStr: null;
+    @if $imp {
+        $impStr: !important;
+    }
+    background: $bg $impStr;
+    background-color: $bg $impStr;
+    color: $fg $impStr;
+}
+
+@mixin statusIcon($ic, $glyph: null, $imp: false) {
+    $impStr: null;
+    @if $imp {
+        $impStr: !important;
+    }
     &:before {
         color: $ic;
         display: inline-block;
         font-family: symbolsfont;
-        font-size: 0.7em;
+        font-size: 0.8em;
         margin-right: $interiorMargin;
+        @if $glyph != null {
+            content: $glyph $impStr;
+        }
     }
 }
 
+@mixin statusStyleCombined($bg, $fg, $ic) {
+    @include statusStyle($bg, $fg, $imp: true);
+    @include statusIcon($ic);
+}
+
 @mixin elementStatusColors($c) {
     // Sets bg and icon colors for elements
     background: rgba($c, 0.5) !important;
@@ -47,16 +66,45 @@
     }
 }
 
-.is-limit--yellow {
-    @include statusStyle($colorLimitYellowBg, $colorLimitYellowFg, $colorLimitYellowIc);
-    &.is-limit--upr:before { content: $glyph-icon-arrow-up; }
-    &.is-limit--lwr:before { content: $glyph-icon-arrow-down; }
+@mixin andUprLwr {
+    &.is-limit--upr:before { content: $glyph-icon-arrow-up !important; }
+    &.is-limit--lwr:before { content: $glyph-icon-arrow-down !important; }
 }
 
-.is-limit--red {
-    @include statusStyle($colorLimitRedBg, $colorLimitRedFg, $colorLimitRedIc);
-    &.is-limit--upr:before { content: $glyph-icon-arrow-double-up; }
-    &.is-limit--lwr:before { content: $glyph-icon-arrow-double-down; }
+/*************************************************** STYLES */
+*:not(tr) {
+    &.is-limit--yellow {
+        @include statusStyle($colorLimitYellowBg, $colorLimitYellowFg, true);
+        @include statusIcon($colorLimitYellowIc, $glyph-icon-alert-rect);
+        @include andUprLwr();
+    }
+
+    &.is-limit--red {
+        @include statusStyle($colorLimitRedBg, $colorLimitRedFg, true);
+        @include statusIcon($colorLimitRedIc, $glyph-icon-alert-triangle);
+        @include andUprLwr();
+    }
+}
+
+tr {
+    &.is-limit--yellow {
+        @include statusStyle($colorLimitYellowBg, $colorLimitYellowFg);
+        td:first-child {
+            @include statusIcon($colorLimitYellowIc, $glyph-icon-alert-rect);
+        }
+        td { color: $colorLimitYellowFg; }
+    }
+
+    &.is-limit--red {
+        @include statusStyle($colorLimitRedBg, $colorLimitRedFg);
+        td:first-child {
+            @include statusIcon($colorLimitRedIc, $glyph-icon-alert-triangle);
+        }
+        td { color: $colorLimitRedFg; }
+    }
+
+    &.is-limit--upr { td:first-child:before {  content: $glyph-icon-arrow-up !important; } }
+    &.is-limit--lwr { td:first-child:before {  content: $glyph-icon-arrow-down !important; } }
 }
 
 /*************************************************** STATUS */

src/styles-new/_table.scss

@@ -53,6 +53,24 @@ table {
     a { color: $colorBtnMajorBg; }
 }
 
+.is-editing {
+    td.is-selectable {
+        &:hover {
+            background: rgba($editUIColorBg, 0.1);
+            box-shadow: inset rgba($editUIColorBg, 0.8) 0 0 0 1px;
+        }
+
+        &[s-selected] {
+            background: $editUIColorBg !important;
+            border: 1px solid $editUIColorFg !important;
+            color: $editUIColorFg !important;
+            box-shadow: $editFrameSelectedShdw;
+            z-index: 2;
+        }
+    }
+}
+
+/******************************************************** C-TABLE */
 div.c-table {
     // When c-table is used as a wrapper element in more complex table views
     height: 100%;
@@ -76,7 +94,7 @@ div.c-table {
     }
 
     thead tr,
-    [class*="__header"] {
+    &.c-table__headers {
         background: $colorTabHeaderBg;
 
         th {

src/styles-new/core.scss

@@ -33,3 +33,4 @@
 @import "table";
 @import "legacy";
 @import "legacy-plots";
+@import "legacy-messages";

src/ui/components/ObjectFrame.vue

@@ -26,21 +26,19 @@
             'has-complex-content': complexContent
         }">
         <div class="c-so-view__header">
-            <div class="c-so-view__header__start">
-                <div class="c-so-view__header__name"
-                     :class="cssClass">
-                    {{ domainObject && domainObject.name }}
-                </div>
-                <context-menu-drop-down
+            <div class="c-so-view__header__icon" :class="cssClass"></div>
+            <div class="c-so-view__header__name">
+                {{ domainObject && domainObject.name }}
+            </div>
+            <context-menu-drop-down
                     :object-path="objectPath">
-                </context-menu-drop-down>
-            </div>
-            <div class="c-so-view__header__end">
-                <div class="c-button icon-expand local-controls--hidden"
-                    title="View Large"
-                    @click="expand">
-                </div>
-            </div>
+            </context-menu-drop-down>
+        </div>
+        <div class="c-so-view__local-controls c-so-view__view-large h-local-controls c-local-controls--show-on-hover">
+            <button class="c-button icon-expand"
+                 title="View Large"
+                 @click="expand">
+            </button>
         </div>
         <object-view 
             class="c-so-view__object-view"
@@ -65,45 +63,53 @@
             align-items: center;
             margin-bottom: $interiorMargin;
 
-            &__start,
-            &__end {
-                display: flex;
-                flex: 1 1 auto;
-            }
-
-            &__end {
-                justify-content: flex-end;
-            }
-
-            &__name {
-                @include headerFont(1em);
-                display: flex;
-                &:before {
-                    margin-right: $interiorMarginSm;
-                }
-            }
-        }
-
-        &--no-frame > .c-so-view__header {
-            display: none;
-        }
-
-        &__name {
-            @include ellipsize();
-            @include headerFont(1.2em);
-            flex: 0 1 auto;
-
-            &:before {
-                // Object type icon
+            &__icon {
                 flex: 0 0 auto;
                 margin-right: $interiorMarginSm;
                 opacity: 0.5;
             }
+
+            &__name {
+                @include headerFont(1em);
+                @include ellipsize();
+                flex: 0 1 auto;
+            }
+        }
+
+        &:not(.c-so-view--no-frame) {
+            background: $colorBodyBg;
+            border: $browseFrameBorder;
+            padding: $interiorMargin;
+        }
+
+        &--no-frame {
+            > .c-so-view__header {
+                display: none;
+            }
+
+            > .c-so-view__local-controls {
+                top: $interiorMarginSm; right: $interiorMarginSm;
+            }
+        }
+
+        &__local-controls {
+            position: absolute;
+            top: $interiorMargin; right: $interiorMargin;
+            z-index: 2;
+        }
+
+        &__view-large {
+            display: none;
+        }
+
+        &.has-complex-content {
+            > .c-so-view__view-large { display: block; }
         }
 
         /*************************** OBJECT VIEW */
         &__object-view {
             flex: 1 1 auto;
+            height: 0; // Chrome 73 overflow bug fix
             overflow: auto;
 
             .c-object-view {
@@ -128,7 +134,9 @@
 
     const SIMPLE_CONTENT_TYPES = [
         'clock',
-        'summary-widget'
+        'timer',
+        'summary-widget',
+        'hyperlink'
     ];
 
     export default {

src/ui/components/ObjectLabel.vue

@@ -59,7 +59,8 @@ export default {
             default() {
                 return [];
             }
-        }
+        },
+        navigateToPath: String
     },
     data() {
         return {

src/ui/components/ObjectView.vue

@@ -34,7 +34,10 @@ export default {
         this.currentObject = this.object;
         this.updateView();
         this.$el.addEventListener('dragover', this.onDragOver);
-        this.$el.addEventListener('drop', this.onDrop);
+        this.$el.addEventListener('drop', this.addObjectToParent);
+        this.$el.addEventListener('drop', this.editIfEditable, {
+            capture: true
+        });
     },
     methods: {
         clear() {
@@ -70,22 +73,18 @@ export default {
             this.viewContainer = document.createElement('div');
             this.viewContainer.classList.add('c-object-view','u-contents');
             this.$el.append(this.viewContainer);
-            let provider = this.openmct.objectViews.getByProviderKey(this.viewKey);
-
+            let provider = this.getViewProvider();
             if (!provider) {
-                provider = this.openmct.objectViews.get(this.currentObject)[0];
-                if (!provider) {
-                    return;
-                }
+                return;
             }
 
-
             if (provider.edit && this.showEditView) {
                 if (this.openmct.editor.isEditing()) {
                     this.currentView = provider.edit(this.currentObject);
                 } else {
                     this.currentView = provider.view(this.currentObject, false);    
                 }
+
                 this.openmct.editor.on('isEditing', this.toggleEditView);
                 this.releaseEditModeHandler = () => this.openmct.editor.off('isEditing', this.toggleEditView);
             } else {
@@ -133,7 +132,7 @@ export default {
                 event.preventDefault();
             }
         },
-        onDrop(event) {
+        addObjectToParent(event) {
             if (this.hasComposableDomainObject(event)) {
                 let composableDomainObject = this.getComposableDomainObject(event);
                 this.currentObject.composition.push(composableDomainObject.identifier);
@@ -142,6 +141,25 @@ export default {
                 event.stopPropagation();
             }
         },
+        getViewProvider() {
+            let provider = this.openmct.objectViews.getByProviderKey(this.viewKey);
+
+            if (!provider) {
+                provider = this.openmct.objectViews.get(this.currentObject)[0];
+                if (!provider) {
+                    return;
+                }
+            }
+            return provider;
+        },
+        editIfEditable(event) {
+            let provider = this.getViewProvider();
+            if (provider && 
+                provider.canEdit(this.currentObject) &&
+                !this.openmct.editor.isEditing()) {
+                    this.openmct.editor.edit();
+            }
+        },
         hasComposableDomainObject(event) {
             return event.dataTransfer.types.includes('openmct/composable-domain-object')
         },

src/ui/inspector/Elements.vue

@@ -67,6 +67,7 @@
     }
 </style>
 <script>
+import _ from 'lodash';
 import Search from '../components/search.vue';
 import ObjectLabel from '../components/ObjectLabel.vue';
 
@@ -82,7 +83,8 @@ export default {
             isEditing: this.openmct.editor.isEditing(),
             parentObject: undefined,
             currentSearch: '',
-            isDragging: false
+            isDragging: false,
+            selection: []
         }
     },
     mounted() {
@@ -99,10 +101,15 @@ export default {
             this.showSelection(this.openmct.selection.get());
         },
         showSelection(selection) {
+            if (_.isEqual(this.selection, selection)) {
+                return;
+            }
+            this.selection = selection;
             this.elements = [];
             this.elementsCache = {};
             this.listeners = [];
-            this.parentObject = selection[0].context.item;
+            this.parentObject = selection && selection[0] && selection[0][0].context.item;
+
             if (this.mutationUnobserver) {
                 this.mutationUnobserver();
             }

src/ui/inspector/Inspector.vue

@@ -199,8 +199,8 @@
         },
         methods: {
             refreshComposition(selection) {
-                if (selection[0]) {
-                    let parentObject = selection[0].context.item;
+                if (selection.length > 0 && selection[0].length > 0) {
+                    let parentObject = selection[0][0].context.item;
 
                     this.hasComposition = !!(parentObject && this.openmct.composition.get(parentObject));
                 }

src/ui/inspector/InspectorViews.vue

@@ -7,30 +7,44 @@
 </style>
 
 <script>
+import _ from 'lodash';
+
     export default {
         inject: ['openmct'],
         mounted() {
             this.openmct.selection.on('change', this.updateSelection);
-            this.updateSelection();
+            this.updateSelection(this.openmct.selection.get());
         },
         destroyed() {
             this.openmct.selection.off('change', this.updateSelection);
         },
+        data() {
+            return {
+                selection: []
+            }
+        },
         methods: {
-            updateSelection() {
-                let selection = this.openmct.selection.get();
+            updateSelection(selection) {
+                if (_.isEqual(this.selection, selection)) {
+                    return;
+                }
+
+                this.selection = selection;
+
                 if (this.selectedViews) {
                     this.selectedViews.forEach(selectedView => {
                         selectedView.destroy();
                     });
                     this.$el.innerHTML = '';
                 }
-                this.viewContainers = [];
+
+                if (selection.length > 1) {
+                    return;
+                }
+
                 this.selectedViews = this.openmct.inspectorViews.get(selection);
                 this.selectedViews.forEach(selectedView => {
                     let viewContainer = document.createElement('div');
-                    this.viewContainers.push(viewContainer);
-
                     this.$el.append(viewContainer)
                     selectedView.show(viewContainer);
                 });

src/ui/inspector/Location.vue

@@ -1,7 +1,7 @@
 <template>
 <div class="c-properties c-properties--location">
     <div class="c-properties__header" title="The location of this linked object.">Original Location</div>
-    <ul class="c-properties__section">
+    <ul class="c-properties__section" v-if="!multiSelect">
         <li class="c-properties__row" v-if="originalPath.length">
             <ul class="c-properties__value c-location">
                 <li v-for="pathObject in orderedOriginalPath"
@@ -15,6 +15,7 @@
             </ul>
         </li>
     </ul>
+    <div class="c-properties__row--span-all" v-if="multiSelect">No location to display for multiple items</div>
 </div>
 </template>
 
@@ -72,6 +73,7 @@ export default {
     data() {
         return {
             domainObject: {},
+            multiSelect: false,
             originalPath: [],
             keyString: ''
         }
@@ -106,16 +108,27 @@ export default {
             this.keyString = '';
         },
         updateSelection(selection) {
-            if (!selection.length) {
+            if (!selection.length || !selection[0].length) {
                 this.clearData();
                 return;
-            } else if (!selection[0].context.item && selection[1] && selection[1].context.item) {
-                this.setOriginalPath([selection[1].context.item], true);
+            }  
+
+            if (selection.length > 1) {
+                this.multiSelect = true;
+                return;
+            } else {
+                this.multiSelect = false;
+            }
+            
+            this.domainObject = selection[0][0].context.item;
+            let parentObject = selection[0][1];
+
+            if (!this.domainObject && parentObject && parentObject.context.item) {
+                this.setOriginalPath([parentObject.context.item], true);
+                this.keyString = '';
                 return;
             }
 
-            this.domainObject = selection[0].context.item;
-
             let keyString = this.openmct.objects.makeKeyString(this.domainObject.identifier);
 
             if (keyString && this.keyString !== keyString) {

src/ui/inspector/Properties.vue

@@ -1,7 +1,7 @@
 <template>
 <div class="c-properties c-properties--properties">
     <div class="c-properties__header">Properties</div>
-    <ul class="c-properties__section">
+    <ul class="c-properties__section" v-if="!multiSelect && !singleSelectNonObject">
         <li class="c-properties__row">
             <div class="c-properties__label">Title</div>
             <div class="c-properties__value">{{ item.name }}</div>
@@ -25,6 +25,8 @@
             <div class="c-properties__value">{{ prop.value }}</div>
         </li>
     </ul>
+    <div class="c-properties__row--span-all" v-if="multiSelect">No properties to display for multiple items</div>
+    <div class="c-properties__row--span-all" v-if="singleSelectNonObject">No properties to display for this item</div>
 </div>
 </template>
 
@@ -35,7 +37,8 @@ export default {
     inject: ['openmct'],
     data() {
         return {
-            domainObject: {}
+            domainObject: {},
+            multiSelect: false
         }
     },
     computed: {
@@ -79,6 +82,9 @@ export default {
                         }, this.item)
                     };
                 });
+        },
+        singleSelectNonObject() {
+            return !this.item.identifier && !this.multiSelect;
         }
     },
     mounted() {
@@ -90,11 +96,19 @@ export default {
     },
     methods: {
         updateSelection(selection) {
-            if (selection.length === 0) {
+            if (selection.length === 0 || selection[0].length === 0) {
                 this.domainObject = {};
                 return;
             }
-            this.domainObject = selection[0].context.item;
+
+            if (selection.length > 1) {
+                this.multiSelect = true;
+                this.domainObject = {};
+                return;
+            } else {
+                this.multiSelect = false;
+                this.domainObject = selection[0][0].context.item;
+            }            
         },
         formatTime(unixTime) {
             return Moment.utc(unixTime).format('YYYY-MM-DD[\n]HH:mm:ss') + ' UTC';

src/ui/layout/AboutDialog.vue

@@ -1,23 +1,24 @@
 <template>
 <div class="c-about c-about--splash">
-    <div v-if="branding.aboutHtml" class="s-text l-content" v-html="branding.aboutHtml"></div>
-    <div v-else class="c-about__image c-splash-image"></div>
-
+    <div class="c-about__image c-splash-image"></div>
     <div class="c-about__text s-text">
-        <h1 class="l-title s-title">Open MCT</h1>
-        <div class="l-description s-description">
-	        <p>Open MCT, Copyright &copy; 2014-2019, United States Government as represented by the Administrator of the National Aeronautics and Space Administration. All rights reserved.</p>
-	        <p>Open MCT is licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at <a target="_blank" href="http://www.apache.org/licenses/LICENSE-2.0">http://www.apache.org/licenses/LICENSE-2.0</a>.</p>
-	        <p>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</p>
-	        <p>Open MCT includes source code licensed under additional open source licenses. See the Open Source Licenses file included with this distribution or <a @click="showLicenses">click here for third party licensing information</a>.</p>
+        <div class="c-about__text__element" v-if="branding.aboutHtml" v-html="branding.aboutHtml"></div>
+        <div class="c-about__text__element">
+            <h1 class="l-title s-title">Open MCT</h1>
+            <div class="l-description s-description">
+                <p>Open MCT, Copyright &copy; 2014-2019, United States Government as represented by the Administrator of the National Aeronautics and Space Administration. All rights reserved.</p>
+                <p>Open MCT is licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.  You may obtain a copy of the License at <a target="_blank" href="http://www.apache.org/licenses/LICENSE-2.0">http://www.apache.org/licenses/LICENSE-2.0</a>.</p>
+                <p>Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.</p>
+                <p>Open MCT includes source code licensed under additional open source licenses. See the Open Source Licenses file included with this distribution or <a @click="showLicenses">click here for third party licensing information</a>.</p>
+            </div>
+            <h2>Version Information</h2>
+            <ul class="t-info l-info s-info">
+                <li>Version: {{buildInfo.version || 'Unknown'}}</li>
+                <li>Build Date: {{buildInfo.buildDate || 'Unknown'}}</li>
+                <li>Revision: {{buildInfo.revision || 'Unknown'}}</li>
+                <li>Branch: {{buildInfo.branch || 'Unknown'}}</li>
+            </ul>
         </div>
-        <h2>Version Information</h2>
-        <ul class="t-info l-info s-info">
-            <li>Version: {{buildInfo.version || 'Unknown'}}</li>
-            <li>Build Date: {{buildInfo.buildDate || 'Unknown'}}</li>
-            <li>Revision: {{buildInfo.revision || 'Unknown'}}</li>
-            <li>Branch: {{buildInfo.branch || 'Unknown'}}</li>
-        </ul>
     </div>
 </div>
 </template>

src/ui/layout/BrowseBar.vue

@@ -43,7 +43,8 @@
             </div>
             <!-- Action buttons -->
             <div class="l-browse-bar__actions">
-                <button class="l-browse-bar__actions__notebook-entry c-button icon-notebook" 
+                <button v-if="notebookEnabled" 
+                    class="l-browse-bar__actions__notebook-entry c-button icon-notebook" 
                     title="New Notebook entry" 
                     @click="snapshot()">
                 </button>
@@ -118,7 +119,10 @@ const PLACEHOLDER_OBJECT = {};
                             label: 'Ok',
                             emphasis: true,
                             callback: () => {
-                                this.openmct.editor.cancel();
+                                this.openmct.editor.cancel().then(() => {
+                                    //refresh object view
+                                    this.openmct.layout.$refs.browseObject.show(this.domainObject, this.viewKey, true);
+                                });
                                 dialog.dismiss();
                             }
                         },
@@ -167,7 +171,8 @@ const PLACEHOLDER_OBJECT = {};
                 showSaveMenu: false,
                 domainObject: PLACEHOLDER_OBJECT,
                 viewKey: undefined,
-                isEditing: this.openmct.editor.isEditing()
+                isEditing: this.openmct.editor.isEditing(),
+                notebookEnabled: false
             }
         },
         computed: {
@@ -213,7 +218,11 @@ const PLACEHOLDER_OBJECT = {};
             }
         },
         mounted: function () {
-            this.notebookSnapshot = new NotebookSnapshot(this.openmct);
+
+            if (this.openmct.types.get('notebook')) {
+                this.notebookSnapshot = new NotebookSnapshot(this.openmct);
+                this.notebookEnabled = true;
+            }
 
             document.addEventListener('click', this.closeViewAndSaveMenu);
             window.addEventListener('beforeunload', this.promptUserbeforeNavigatingAway);
@@ -222,7 +231,20 @@ const PLACEHOLDER_OBJECT = {};
                 this.isEditing = isEditing;
             });
         },
+        watch: {
+            domainObject() {
+                if (this.mutationObserver) {
+                    this.mutationObserver();
+                }
+                this.mutationObserver = this.openmct.objects.observe(this.domainObject, '*', (domainObject) => {
+                    this.domainObject = domainObject;
+                });
+            }
+        },
         beforeDestroy: function () {
+            if (this.mutationObserver) {
+                this.mutationObserver();
+            }
             document.removeEventListener('click', this.closeViewAndSaveMenu);
             window.removeEventListener('click', this.promptUserbeforeNavigatingAway);
         }
@@ -267,10 +289,14 @@ const PLACEHOLDER_OBJECT = {};
 
         &__nav-to-parent-button {
             // This is an icon-button
-            $p: $interiorMarginLg;
+            $p: $interiorMargin;
             margin-right: $interiorMargin;
             padding-left: $p;
             padding-right: $p;
+
+            .is-editing & {
+                display: none;
+            }
         }
 
         &__object-name--w {

src/ui/layout/Layout.vue

@@ -64,7 +64,6 @@
         &__status {
             background: $colorStatusBarBg;
             color: $colorStatusBarFg;
-            height: 24px;
             padding: $interiorMarginSm;
         }
 
@@ -75,6 +74,7 @@
                 // For mobile, collapse button becomes menu icon
                 body.mobile & {
                     @include cClickIconButton();
+                    color: $colorKey !important;
                     position: absolute;
                     right: -2 * nth($shellPanePad, 2); // Needs to be -1 * when pane is collapsed
                     top: 0;
@@ -186,6 +186,7 @@
         &__main-container {
             // Wrapper for main views
             flex: 1 1 auto !important;
+            height: 0; // Chrome 73 overflow bug fix
             overflow: auto;
         }
 
@@ -348,7 +349,7 @@
             toggleHasToolbar(selection) {
                 let structure = undefined;
 
-                if (!selection[0]) {
+                if (!selection || !selection[0]) {
                     structure = [];
                 } else {
                     structure = this.openmct.toolbars.get(selection);

src/ui/layout/mct-tree.vue

@@ -52,13 +52,12 @@
 
         &__tree {
             flex: 1 1 auto;
-            height: 100%;
+            height: 0; // Chrome 73 overflow bug fix
         }
     }
 
     .c-tree {
         @include userSelectNone();
-        height: 100%; // Chrome 73 overflow bug fix
         overflow-x: hidden;
         overflow-y: auto;
         padding-right: $interiorMargin;
@@ -211,7 +210,8 @@
                                 return {
                                     id: this.openmct.objects.makeKeyString(c.identifier),
                                     object: c,
-                                    objectPath: [c]
+                                    objectPath: [c],
+                                    navigateToParent: '/browse'
                             };
                         });
                     });
@@ -222,18 +222,23 @@
                         
                         let context = child.object.getCapability('context'),
                             object = child.object.useCapability('adapter'),
-                            objectPath = [];
+                            objectPath = [],
+                            navigateToParent;
 
                         if (context) {
                             objectPath = context.getPath().slice(1)
                                 .map(oldObject => oldObject.useCapability('adapter'))
-                                .reverse();  
+                                .reverse();
+                            navigateToParent = '/browse/' + objectPath.slice(1)
+                                .map((parent) => this.openmct.objects.makeKeyString(parent.identifier))
+                                .join('/');
                         }
 
                         return {
                             id: this.openmct.objects.makeKeyString(object.identifier),
                             object,
-                            objectPath
+                            objectPath,
+                            navigateToParent
                         }
                     });
                 });

src/ui/layout/pane.vue

@@ -194,8 +194,8 @@
                 /********************************* STYLES FOR DESKTOP COLLAPSED PANES, ALL ORIENTATIONS */
                 $d: nth($splitterBtnD, 1);
                 flex-basis: $d;
-                min-width: $d !important;
-                min-height: $d !important;
+                min-width: $d;
+                min-height: $d;
 
                 > .l-pane__handle {
                     display: none;

src/ui/layout/tree-item.vue

@@ -7,7 +7,8 @@
                           v-model="expanded">
             </view-control>
             <object-label :domainObject="node.object"
-                          :objectPath="node.objectPath">
+                          :objectPath="node.objectPath"
+                          :navigateToPath="navigateToPath">
             </object-label>
         </div>
         <ul v-if="expanded" class="c-tree">
@@ -36,13 +37,12 @@
             node: Object
         },
         data() {
-            this.pathToObject = this.buildPathString(this.node.objectPath);
-
+            this.navigateToPath = this.buildPathString(this.node.navigateToParent)
             return {
                 hasChildren: false,
                 isLoading: false,
                 loaded: false,
-                isNavigated: this.pathToObject === this.openmct.router.currentLocation.path,
+                isNavigated: this.navigateToPath === this.openmct.router.currentLocation.path,
                 children: [],
                 expanded: false
             }
@@ -103,7 +103,8 @@
                 this.children.push({
                     id: this.openmct.objects.makeKeyString(child.identifier),
                     object: child,
-                    objectPath: [child].concat(this.node.objectPath)
+                    objectPath: [child].concat(this.node.objectPath),
+                    navigateToParent: this.navigateToPath
                 });
             },
             removeChild(identifier) {
@@ -115,15 +116,13 @@
                 this.isLoading = false;
                 this.loaded = true;
             },
-            buildPathString(path) {
-                return '/browse/' + path.map(o => o && this.openmct.objects.makeKeyString(o.identifier))
-                    .reverse()
-                    .join('/');
+            buildPathString(parentPath) {
+                return [parentPath, this.openmct.objects.makeKeyString(this.node.object.identifier)].join('/');
             },
             highlightIfNavigated(newPath, oldPath){
-                if (newPath === this.pathToObject) {
+                if (newPath === this.navigateToPath) {
                     this.isNavigated = true;
-                } else if (oldPath === this.pathToObject) {
+                } else if (oldPath === this.navigateToPath) {
                     this.isNavigated = false;
                 }
             }

src/ui/mixins/object-link.js

@@ -13,6 +13,9 @@ export default {
             if (!this.objectPath.length) {
                 return;
             }
+            if (this.navigateToPath) {
+                return '#' + this.navigateToPath;
+            }
             return '#/browse/' + this.objectPath
                 .map(o => o && this.openmct.objects.makeKeyString(o.identifier))
                 .reverse()

src/ui/preview/Preview.vue

@@ -33,7 +33,8 @@
             </div>
             <div class="l-browse-bar__end">
                 <div class="l-browse-bar__actions">
-                    <button class="l-browse-bar__actions__edit c-button icon-notebook" 
+                    <button v-if="notebookEnabled"
+                        class="l-browse-bar__actions__edit c-button icon-notebook" 
                         title="New Notebook entry" 
                         @click="snapshot">
                     </button>
@@ -63,7 +64,11 @@
         }
 
         &__object-view {
+            background: $colorBodyBg;
+            border: 1px solid $colorInteriorBorder;
             flex: 1 1 auto;
+            overflow: auto;
+            padding: $interiorMargin;
 
             > div:not([class]) {
                 // Target an immediate child div without a class and make it display: contents
@@ -97,14 +102,19 @@
 
             return {
                 domainObject: domainObject,
-                type: type
+                type: type,
+                notebookEnabled: false
             };
         },
         mounted() {
             let viewProvider = this.openmct.objectViews.get(this.domainObject)[0];
             this.view = viewProvider.view(this.domainObject);
             this.view.show(this.$refs.objectView, false);
-            this.notebookSnapshot = new NotebookSnapshot(this.openmct);
+
+            if (this.openmct.types.get('notebook')) {
+                this.notebookSnapshot = new NotebookSnapshot(this.openmct);
+                this.notebookEnabled = true;
+            }
         },
         destroy() {
             this.view.destroy();

src/ui/toolbar/Toolbar.vue

@@ -42,14 +42,13 @@
                 this.removeListeners();
                 this.domainObjectsById = {};
 
-                if (!selection[0]) {
+                if (selection.length === 0 || !selection[0][0]) {
                     this.structure = [];
                     return;
                 }
 
                 let structure = this.openmct.toolbars.get(selection) || [];
-                this.structure = structure.map(item => {
-                    let toolbarItem = {...item};
+                this.structure = structure.map(toolbarItem => {
                     let domainObject = toolbarItem.domainObject;
                     let formKeys = [];
                     toolbarItem.control = "toolbar-" + toolbarItem.control;
@@ -64,12 +63,7 @@
                     }
 
                     if (domainObject) {
-                        if (formKeys.length > 0) {
-                            toolbarItem.value = this.getFormValue(domainObject, toolbarItem);
-                        } else {
-                            toolbarItem.value = _.get(domainObject, this.getItemProperty(item));
-                        }
-
+                        toolbarItem.value = this.getValue(domainObject, toolbarItem);
                         this.registerListener(domainObject);
                     }
 
@@ -89,21 +83,12 @@
             observeObject(domainObject, id) {
                 let unobserveObject = this.openmct.objects.observe(domainObject, '*', function(newObject) {
                     this.domainObjectsById[id].newObject = JSON.parse(JSON.stringify(newObject));
-                    this.scheduleToolbarUpdate();
+                    this.updateToolbarAfterMutation();
                 }.bind(this));
                 this.unObserveObjects.push(unobserveObject);
             },
-            scheduleToolbarUpdate() {
-                if (this.toolbarUpdateScheduled) {
-                    return;
-                }
-
-                this.toolbarUpdateScheduled = true;
-                setTimeout(this.updateToolbarAfterMutation.bind(this));
-            },
             updateToolbarAfterMutation() {
-                this.structure = this.structure.map(item => {
-                    let toolbarItem = {...item};
+                this.structure = this.structure.map(toolbarItem => {
                     let domainObject = toolbarItem.domainObject;
 
                     if (domainObject) {
@@ -112,12 +97,7 @@
 
                         if (newObject) {
                             toolbarItem.domainObject = newObject;
-
-                            if (toolbarItem.formKeys) {
-                                toolbarItem.value = this.getFormValue(newObject, toolbarItem);
-                            } else {
-                                toolbarItem.value = _.get(newObject, this.getItemProperty(item));
-                            }
+                            toolbarItem.value = this.getValue(newObject, toolbarItem);
                         }
                     }
 
@@ -130,17 +110,78 @@
                         delete tracker.newObject;
                     }
                 });
-                this.toolbarUpdateScheduled = false;
+            },
+            getValue(domainObject, toolbarItem) {
+                let value = undefined;
+                let applicableSelectedItems = toolbarItem.applicableSelectedItems;
+
+                if (!applicableSelectedItems && !toolbarItem.property) {
+                    return value;
+                }
+
+                if (toolbarItem.formKeys) {
+                    value = this.getFormValue(domainObject, toolbarItem);
+                } else {
+                    let values = [];
+
+                    if (applicableSelectedItems) {
+                        applicableSelectedItems.forEach(selectionPath => {
+                            values.push(this.getPropertyValue(domainObject, toolbarItem, selectionPath));
+                        });
+                    } else {
+                        values.push(this.getPropertyValue(domainObject, toolbarItem));
+                    }
+
+                    // If all values are the same, use it, otherwise mark the item as non-specific.
+                    if (values.every(value => value === values[0])) {
+                        value = values[0];
+                        toolbarItem.nonSpecific = false;
+                    } else {
+                        toolbarItem.nonSpecific = true;
+                    }
+                }
+
+                return value;
+            },
+            getPropertyValue(domainObject, toolbarItem, selectionPath, formKey) {
+                let property = this.getItemProperty(toolbarItem, selectionPath);
+
+                if (formKey) {
+                    property = property + "." + formKey;
+                }
+
+                return _.get(domainObject, property);
             },
             getFormValue(domainObject, toolbarItem) {
                 let value = {};
+                let values = {};
+
                 toolbarItem.formKeys.map(key => {
-                    value[key] = _.get(domainObject, this.getItemProperty(toolbarItem) + "." + key);
+                    values[key] = [];
+
+                    if (toolbarItem.applicableSelectedItems) {
+                        toolbarItem.applicableSelectedItems.forEach(selectionPath => {
+                            values[key].push(this.getPropertyValue(domainObject, toolbarItem, selectionPath, key));
+                        });
+                    } else {
+                        values[key].push(this.getPropertyValue(domainObject, toolbarItem, undefined, key));
+                    }
                 });
+
+                for (const key in values) {
+                    if (values[key].every(value => value === values[key][0])) {
+                        value[key] = values[key][0];
+                        toolbarItem.nonSpecific = false;
+                    } else {
+                        toolbarItem.nonSpecific = true;
+                        return {};
+                    }
+                }
+
                 return value;
             },
-            getItemProperty(item) {
-                return (typeof item.property === "function") ? item.property() : item.property;
+            getItemProperty(item, selectionPath) {
+                return (typeof item.property === "function") ? item.property(selectionPath) : item.property;
             },
             removeListeners() {
                 if (this.unObserveObjects) {
@@ -152,14 +193,12 @@
             },
             updateObjectValue(value, item) {
                 let changedItemId = this.openmct.objects.makeKeyString(item.domainObject.identifier);
-                this.structure = this.structure.map((s) => {
-                    let toolbarItem = {...s};
-                    let domainObject = toolbarItem.domainObject;
 
-                    if (domainObject) {
-                        let id = this.openmct.objects.makeKeyString(domainObject.identifier);
+                this.structure = this.structure.map(toolbarItem => {
+                    if (toolbarItem.domainObject) {
+                        let id = this.openmct.objects.makeKeyString(toolbarItem.domainObject.identifier);
 
-                        if (changedItemId === id && this.getItemProperty(item) === this.getItemProperty(s)) {
+                        if (changedItemId === id && _.isEqual(toolbarItem, item)) {
                             toolbarItem.value = value;
                         }
                     }
@@ -173,14 +212,35 @@
                     this.structure.map(s => {
                         if (s.formKeys) {
                             s.formKeys.forEach(key => {
-                                this.openmct.objects.mutate(item.domainObject, this.getItemProperty(item) + "." + key, value[key]);
+                                if (item.applicableSelectedItems) {
+                                    item.applicableSelectedItems.forEach(selectionPath => {
+                                        this.mutateObject(item, value[key], selectionPath, key);
+                                    });
+                                } else {
+                                    this.mutateObject(item, value[key], undefined, key);
+                                }
                             });
                         }
                     });
                 } else {
-                    this.openmct.objects.mutate(item.domainObject, this.getItemProperty(item), value);
+                    if (item.applicableSelectedItems) {
+                        item.applicableSelectedItems.forEach(selectionPath => {
+                            this.mutateObject(item, value, selectionPath);
+                        });
+                    } else {
+                        this.mutateObject(item, value);
+                    }
                 }
             },
+            mutateObject(item, value, selectionPath, formKey) {
+                let property = this.getItemProperty(item, selectionPath);
+
+                if (formKey) {
+                    property = property + "." + formKey;
+                }
+
+                this.openmct.objects.mutate(item.domainObject, property, value);
+            },
             triggerMethod(item, event) {
                 if (item.method) {
                     item.method({...event});

src/ui/toolbar/components/toolbar-button.vue

@@ -4,14 +4,14 @@
             :title="options.title"
             :class="{
                 [options.icon]: true,
-                'c-icon-button--caution': options.modifier === 'caution'
+                'c-icon-button--caution': options.modifier === 'caution',
+                'c-icon-button--mixed': nonSpecific
             }"
             @click="onClick">
             <div class="c-icon-button__label"
                  v-if="options.label">
                 {{ options.label }}
             </div>
-
         </div>
     </div>
 </template>
@@ -22,6 +22,11 @@ export default {
     props: {
         options: Object
     },
+    computed: {
+        nonSpecific() {
+            return this.options.nonSpecific === true;
+        }
+    },
     methods: {
         onClick(event) {
             if (this.options.dialog) {

src/ui/toolbar/components/toolbar-color-picker.vue

@@ -1,7 +1,7 @@
 <template>
     <div class="c-ctrl-wrapper">
         <div class="c-icon-button c-icon-button--swatched"
-             :class="options.icon"
+             :class="[options.icon, {'c-icon-button--mixed': nonSpecific}]"
              :title="options.title"
              @click="toggle">
             <div class="c-swatch" :style="{
@@ -36,6 +36,11 @@ export default {
     props: {
         options: Object
     },
+    computed: {
+        nonSpecific() {
+            return this.options.nonSpecific === true;
+        }
+    },
     methods: {
         select(color) {
             if (color.value !== this.options.value) {

src/ui/toolbar/components/toolbar-select-menu.vue

@@ -1,7 +1,7 @@
 <template>
     <div class="c-ctrl-wrapper">
         <div class="c-icon-button c-icon-button--menu"
-             :class="options.icon"
+             :class="[options.icon, {'c-click-icon--mixed': nonSpecific}]"
              :title="options.title"
              @click="toggle">
             <div class="c-button__label">{{ selectedName }}</div>
@@ -47,7 +47,11 @@ export default {
             if (selectedOption) {
                 return selectedOption.name || selectedOption.value
             }
-            return '';
+            // If no selected option, then options are non-specific
+            return '??px';
+        },
+        nonSpecific() {
+            return this.options.nonSpecific === true;
         }
     }
 }

src/ui/toolbar/components/toolbar-toggle-button.vue

@@ -2,7 +2,7 @@
     <div class="c-ctrl-wrapper">
         <div class="c-icon-button"
              :title="nextValue.title"
-             :class="nextValue.icon"
+             :class="[nextValue.icon, {'c-click-icon--mixed': nonSpecific}]"
              @click="cycle">
         </div>
     </div>
@@ -23,6 +23,9 @@ export default {
                 nextIndex = 0;
             }
             return this.options.options[nextIndex];
+        },
+        nonSpecific() {
+            return this.options.nonSpecific === true;
         }
     },
     methods: {