diff --git a/chain-forge/src/EvaluatorNode.js b/chain-forge/src/EvaluatorNode.js
index 662e14c..d4d0ba7 100644
--- a/chain-forge/src/EvaluatorNode.js
+++ b/chain-forge/src/EvaluatorNode.js
@@ -1,9 +1,7 @@
-import React, { useState, useEffect, useRef } from 'react';
+import React, { useState, useRef } from 'react';
 import { Handle } from 'react-flow-renderer';
 import useStore from './store';
-import StatusIndicator from './StatusIndicatorComponent'
 import NodeLabel from './NodeLabelComponent'
-import AlertModal from './AlertModal'
 import { IconTerminal } from '@tabler/icons-react'
 import {BASE_URL} from './store';
 
@@ -27,9 +25,7 @@ const EvaluatorNode = ({ data, id }) => {
 
   const [codeText, setCodeText] = useState(data.code);
   const [codeTextOnLastRun, setCodeTextOnLastRun] = useState(false);
-  const [reduceMethod, setReduceMethod] = useState('none');
   const [mapScope, setMapScope] = useState('response');
-  const [reduceVars, setReduceVars] = useState([]);
 
   const handleCodeChange = (code) => {
     if (codeTextOnLastRun !== false) {
@@ -82,7 +78,7 @@ const EvaluatorNode = ({ data, id }) => {
             code: codeTextOnRun,
             scope: mapScope,
             responses: input_node_ids,
-            reduce_vars: reduceMethod === 'avg' ? reduceVars : [],
+            reduce_vars: [], // reduceMethod === 'avg' ? reduceVars : [],
             script_paths: script_paths,
             // write an extra part here that takes in reduce func
         }),
@@ -112,37 +108,9 @@ const EvaluatorNode = ({ data, id }) => {
     }, rejected);
   };
 
-  const handleOnReduceMethodSelect = (event) => {
-    const method = event.target.value;
-    if (method === 'none') {
-      setReduceVars([]);
-    }
-    setReduceMethod(method);
-  };
-
   const handleOnMapScopeSelect = (event) => {
     setMapScope(event.target.value);
   };
-  
-  const handleReduceVarsChange = (event) => {
-    // Split on commas, ignoring commas wrapped in double-quotes 
-    const regex_csv = /,(?!(?<=(?:^|,)\s*\x22(?:[^\x22]|\x22\x22|\\\x22)*,)(?:[^\x22]|\x22\x22|\\\x22)*\x22\s*(?:,|$))/g;
-    setReduceVars(event.target.value.split(regex_csv).map(s => s.trim()));
-  };
-
-  // To get CM editor state every render, use this and add ref={cmRef} to CodeMirror component
-  // const cmRef = React.useRef({});
-  // useEffect(() => {
-  //   if (cmRef.current?.view) console.log('EditorView:', cmRef.current?.view);
-  //   if (cmRef.current?.state) console.log('EditorState:', cmRef.current?.state);
-  //   if (cmRef.current?.editor) {
-  //     console.log('HTMLDivElement:', cmRef.current?.editor);
-  //   }
-  // }, [cmRef.current]);
-
-  // const initEditor = (view, state) => {
-  //   console.log(view, state);
-  // }
 
   const hideStatusIndicator = () => {
     if (status !== 'none') { setStatus('none'); }
@@ -200,34 +168,17 @@ const EvaluatorNode = ({ data, id }) => {
             }}
           />
         </div>
-        {/* <CodeMirror
-          // onCreateEditor={initEditor}
-          value={data.code}
-          height="200px"
-          width="400px"
-          theme={materialLight}
-          style={{cursor: 'text'}}
-          onChange={handleCodeChange}
-          extensions={[python(), indentUnit.of("  ")]}
-        /> */}
       </div>
-      <hr/>
+      {/* <hr/>
       <div>
         <div className="code-mirror-field-header">Method to reduce across <span className="code-style">responses</span>:</div>
         <select name="method" id="method" onChange={handleOnReduceMethodSelect} className="nodrag">
             <option value="none">None</option>
             <option value="avg">Average across</option>
-            {/* <option value="custom">Custom reducer</option> */}
         </select>
         <span> </span>
         <input type="text" id="method-vars" name="method-vars" onChange={handleReduceVarsChange} disabled={reduceMethod === 'none'} className="nodrag" />
-        {/* <label for="avg">Average over: </label>
-        <select name="avg" id="avg">
-            <option value="mod">mod</option>
-            <option value="paragraph">paragraph</option>
-            <option value="_none">N/A</option>
-        </select> */}
-      </div>
+      </div> */}
     </div>
   );
 };
diff --git a/chain-forge/src/InspectorNode.js b/chain-forge/src/InspectorNode.js
index f107dc0..32ff9a5 100644
--- a/chain-forge/src/InspectorNode.js
+++ b/chain-forge/src/InspectorNode.js
@@ -1,6 +1,6 @@
 import React, { useState, useEffect } from 'react';
 import { Handle } from 'react-flow-renderer';
-import { Badge } from '@mantine/core';
+import { Badge, MultiSelect } from '@mantine/core';
 import useStore from './store';
 import NodeLabel from './NodeLabelComponent'
 import {BASE_URL} from './store';
@@ -33,13 +33,13 @@ const bucketResponsesByLLM = (responses) => {
 const InspectorNode = ({ data, id }) => {
 
   const [responses, setResponses] = useState([]);
-  const [varSelects, setVarSelects] = useState([]);
   const [pastInputs, setPastInputs] = useState([]);
   const inputEdgesForNode = useStore((state) => state.inputEdgesForNode);
   const setDataPropsForNode = useStore((state) => state.setDataPropsForNode);
 
-  const handleVarValueSelect = () => {
-  }
+  // The MultiSelect so people can dynamically set what vars they care about
+  const [multiSelectVars, setMultiSelectVars] = useState(data.vars || []);
+  const [multiSelectValue, setMultiSelectValue] = useState(data.selected_vars || []);
 
   const handleOnConnect = () => {
     // Get the ids from the connected input nodes:
@@ -59,19 +59,61 @@ const InspectorNode = ({ data, id }) => {
     }).then(function(json) {
         console.log(json);
         if (json.responses && json.responses.length > 0) {
+            const responses = json.responses;
 
+            // Find all vars in response
+            let found_vars = new Set();
+            responses.forEach(res_obj => {
+                Object.keys(res_obj.vars).forEach(v => {
+                    found_vars.add(v);
+                });
+            });
+
+            // Set the variables accessible in the MultiSelect for 'group by'
+            setMultiSelectVars(Array.from(found_vars).map(name => (
+                // We add a $ prefix to mark this as a prompt parameter, and so 
+                // in the future we can add special types of variables without name collisions
+                {value: `${name}`, label: name} 
+            )).concat({value: 'LLM', label: 'LLM'}));
+
+            // If this is an initial run or the multi select value is empty, set to group by 'LLM' by default:
+            let selected_vars = multiSelectValue;
+            if (multiSelectValue.length === 0) {
+                setMultiSelectValue(['LLM']);
+                selected_vars = ['LLM'];
+            }
+
+            // Now we need to perform groupings by each var in the selected vars list,
+            // nesting the groupings (preferrably with custom divs) and sorting within 
+            // each group by value of that group's var (so all same values are clumped together).
+            /** 
+            const groupBy = (resps, varnames) => {
+                if (varnames.length === 0) return [];
+
+                const groupName = varnames[0];
+                const groupedResponses = groupResponsesByVar(resps, groupName);
+                const groupedResponseDivs = groupedResponses.map(g => groupBy(g, varnames.slice(1)));
+
+                return (
+                    <div key={groupName} className="response-group">
+                        <span>{groupName}</span>
+                        {groupedResponseDivs}
+                    </div>
+                );
+            };
+
+            // Group by LLM
+            if (selected_vars.includes('LLM')) {
+                // ... 
+
+            // Group without LLM
+            } else {
+                // .. 
+            }
+            */
+            
             // Bucket responses by LLM:
             const responses_by_llm = bucketResponsesByLLM(json.responses);
-            
-            // // Get the var names across all responses, as a set
-            // let tempvarnames = new Set();
-            // json.responses.forEach(r => {
-            //     if (!r.vars) return;
-            //     Object.keys(r.vars).forEach(tempvarnames.add);
-            // });
-
-            // // Create a dict version
-            // let tempvars = {};
 
             const colors = ['#ace1aeb1', '#f1b963b1', '#e46161b1', '#f8f398b1', '#defcf9b1', '#cadefcb1', '#c3bef0b1', '#cca8e9b1'];
             setResponses(Object.keys(responses_by_llm).map((llm, llm_idx) => {
@@ -136,11 +178,15 @@ const InspectorNode = ({ data, id }) => {
     <NodeLabel title={data.title || 'Inspect Node'} 
                 nodeId={id}
                 icon={'🔍'} />
-      {/* <div className="var-select-toolbar">
-        {varSelects}
-      </div> */}
+      <MultiSelect onChange={setMultiSelectValue}
+                     className='nodrag nowheel'
+                     data={multiSelectVars}
+                     placeholder="Pick vars to group responses, in order of importance"
+                     size="xs"
+                     value={multiSelectValue}
+                     searchable />
       <div className="inspect-response-container nowheel nodrag">
-      {responses}
+        {responses}
       </div>
       <Handle
         type="target"
diff --git a/chain-forge/src/TextFieldsNode.js b/chain-forge/src/TextFieldsNode.js
index d0ca886..f2aeb8a 100644
--- a/chain-forge/src/TextFieldsNode.js
+++ b/chain-forge/src/TextFieldsNode.js
@@ -29,13 +29,16 @@ const TextFieldsNode = ({ data, id }) => {
   const [templateVars, setTemplateVars] = useState(data.vars || []);
   const setDataPropsForNode = useStore((state) => state.setDataPropsForNode);
   const delButtonId = 'del-';
-  const [idCounter, setIDCounter] = useState(0);
-  // const [resizeObserver, setResizeObserver] = useState(null);
 
-  const get_id = () => {
-    setIDCounter(idCounter + 1);
-    return 'f' + idCounter.toString();
-  }
+  const getUID = useCallback(() => {
+    if (data.fields) {
+      return 'f' + (1 + Object.keys(data.fields).reduce((acc, key) => (
+        Math.max(acc, parseInt(key.slice(1)))
+      ), 0).toString());
+    } else {
+      return 'f0';
+    }
+  }, [data.fields]);
 
   // Handle a change in a text fields' input.
   const handleInputChange = useCallback((event) => {
@@ -74,7 +77,7 @@ const TextFieldsNode = ({ data, id }) => {
     delete new_data.fields[item_id];
     // if the new_data is empty, initialize it with one empty field
     if (Object.keys(new_data.fields).length === 0) {
-      new_data.fields[get_id()] = '';
+      new_data.fields[getUID()] = '';
     }
     setDataPropsForNode(id, new_data);
   }, [data, id, setDataPropsForNode]);
@@ -83,14 +86,14 @@ const TextFieldsNode = ({ data, id }) => {
   const [fields, setFields] = useState([]);
   useEffect(() => {
     if (!data.fields)
-      setDataPropsForNode(id, { fields: {[get_id()]: ''}} );
+      setDataPropsForNode(id, { fields: {[getUID()]: ''}} );
   }, []);
 
   // Whenever 'data' changes, update the input fields to reflect the current state.
   useEffect(() => {
     const f = data.fields ? Object.keys(data.fields) : [];
     const num_fields = f.length;
-    setFields(f.map((i, idx) => {
+    setFields(f.map((i) => {
       const val = data.fields ? data.fields[i] : '';
       return (
         <div className="input-field" key={i}>
@@ -104,7 +107,7 @@ const TextFieldsNode = ({ data, id }) => {
   const handleAddField = useCallback(() => {
     // Update the data for this text fields' id.
     let new_data = { 'fields': {...data.fields} };
-    new_data.fields[get_id()] = "";
+    new_data.fields[getUID()] = "";
     setDataPropsForNode(id, new_data);
   }, [data, id, setDataPropsForNode]);
 
@@ -129,7 +132,6 @@ const TextFieldsNode = ({ data, id }) => {
       });
 
       observer.observe(elem);
-      // setResizeObserver(observer);
     }
     ref.current = elem;
   }, [ref, hooksY]);
diff --git a/chain-forge/src/VisNode.js b/chain-forge/src/VisNode.js
index 3087e29..2d320cd 100644
--- a/chain-forge/src/VisNode.js
+++ b/chain-forge/src/VisNode.js
@@ -49,7 +49,7 @@ const VisNode = ({ data, id }) => {
 
     // Re-plot responses when anything changes
     useEffect(() => {
-        if (!responses || responses.length === 0 || !multiSelectValue || multiSelectValue.length === 0) return;
+        if (!responses || responses.length === 0 || !multiSelectValue) return;
 
         // Bucket responses by LLM:
         let responses_by_llm = {};
@@ -69,7 +69,7 @@ const VisNode = ({ data, id }) => {
             width: 420, height: 300, title: '', margin: {
                 l: 105, r: 0, b: 20, t: 20, pad: 0
             }
-        }
+        };
 
         const plot_grouped_boxplot = (resp_to_x) => {
             llm_names.forEach((llm, idx) => {
@@ -83,7 +83,7 @@ const VisNode = ({ data, id }) => {
                 let text_items = [];
                 for (const name of names) {
                     rs.forEach(r => {
-                        if (r.vars[varnames[0]].trim() !== name) return;
+                        if (resp_to_x(r) !== name) return;
                         x_items = x_items.concat(r.eval_res.items).flat();
                         text_items = text_items.concat(createHoverTexts(r.responses)).flat();
                         y_items = y_items.concat(Array(r.eval_res.items.length).fill(truncStr(name, 12))).flat();