diff --git a/ui/src/App.jsx b/ui/src/App.jsx
index 65afbc5..2740847 100644
--- a/ui/src/App.jsx
+++ b/ui/src/App.jsx
@@ -18,7 +18,9 @@ export default function App() {
   const [authed, setAuthed] = useState(false)
   const [loginUser, setLoginUser] = useState('')
   const [sources, setSources] = useState([])
+  const [stacks, setStacks] = useState([])
   const [source, setSource] = useState(() => localStorage.getItem('selectedSource') || '')
+  const [selectedStack, setSelectedStack] = useState(null)
   const [sidebarExpanded, setSidebarExpanded] = useState(() => localStorage.getItem('df_sidebar') !== 'collapsed')
   // Sets of names whose dfv view is out of sync with current definitions
   const [staleSources, setStaleSources] = useState(new Set())
@@ -28,14 +30,14 @@ export default function App() {
 
   async function handleLogin(user, pass) {
     setCredentials(user, pass)
-    await api.getSources().then(s => {
-      sessionStorage.setItem('df_user', user)
-      sessionStorage.setItem('df_pass', pass)
-      setSources(s)
-      if (!source && s.length > 0) setSource(s[0].name)
-      setAuthed(true)
-      setLoginUser(user)
-    })
+    const s = await api.getSources()
+    sessionStorage.setItem('df_user', user)
+    sessionStorage.setItem('df_pass', pass)
+    setSources(s)
+    if (!source && s.length > 0) setSource(s[0].name)
+    setAuthed(true)
+    setLoginUser(user)
+    api.getStacks().then(setStacks).catch(() => {})
   }
 
   function handleLogout() {
@@ -45,11 +47,17 @@ export default function App() {
     setAuthed(false)
     setLoginUser('')
     setSources([])
+    setStacks([])
+    setSelectedStack(null)
     setStaleSources(new Set())
     setStaleStacks(new Set())
     setReprocessSources(new Set())
   }
 
+  function refreshStacks() {
+    api.getStacks().then(setStacks).catch(() => {})
+  }
+
   // Load initial stale state from DB once on login
   useEffect(() => {
     if (!authed) return
@@ -128,7 +136,10 @@ export default function App() {
 
         {/* Main */}
         <div className="flex-1 overflow-hidden flex flex-col min-w-0">
-          <StatusBar sources={sources} source={source} setSource={setSource} />
+          <StatusBar
+            sources={sources} source={source} setSource={setSource}
+            stacks={stacks} selectedStack={selectedStack} setSelectedStack={setSelectedStack}
+          />
 
           {(staleSources.size > 0 || staleStacks.size > 0) && (
             <div className="bg-amber-50 border-b border-amber-200 px-4 py-1.5 text-xs text-amber-800 flex flex-wrap items-center gap-x-3 gap-y-1">
@@ -187,8 +198,8 @@ export default function App() {
               <Route path="/mappings" element={<Mappings source={source} onNeedsReprocess={markNeedsReprocess} />} />
               <Route path="/remap" element={<Remap />} />
               <Route path="/records" element={<Records source={source} />} />
-              <Route path="/pivot" element={<Pivot source={source} />} />
-              <Route path="/stacks" element={<Stacks sources={sources} onStackStale={markStackStale} onStackViewGenerated={clearStackStale} />} />
+              <Route path="/pivot" element={<Pivot source={source} selectedStack={selectedStack} setSelectedStack={setSelectedStack} />} />
+              <Route path="/stacks" element={<Stacks sources={sources} onStackStale={markStackStale} onStackViewGenerated={clearStackStale} onStacksChange={refreshStacks} />} />
               <Route path="/log" element={<Log />} />
             </Routes>
           </div>
diff --git a/ui/src/components/StatusBar.jsx b/ui/src/components/StatusBar.jsx
index f430104..2042699 100644
--- a/ui/src/components/StatusBar.jsx
+++ b/ui/src/components/StatusBar.jsx
@@ -1,7 +1,7 @@
 import { NavLink } from 'react-router-dom'
 import useTheme from '../theme.jsx'
 
-export default function StatusBar({ sources = [], source, setSource }) {
+export default function StatusBar({ sources = [], source, setSource, stacks = [], selectedStack, setSelectedStack }) {
   const { dark, setDark } = useTheme()
 
   return (
@@ -23,6 +23,26 @@ export default function StatusBar({ sources = [], source, setSource }) {
         title="New source"
       >+</NavLink>
 
+      {stacks.length > 0 && (
+        <>
+          <span className="text-gray-200">|</span>
+          <span className="text-gray-400">Stacks</span>
+          {stacks.map(s => (
+            <button
+              key={s.name}
+              onClick={() => setSelectedStack(n => n === s.name ? null : s.name)}
+              className={`rounded px-2 py-0.5 border transition-colors ${
+                selectedStack === s.name
+                  ? 'bg-purple-50 border-purple-300 text-purple-700'
+                  : 'bg-white border-gray-200 text-gray-500 hover:border-gray-400'
+              }`}
+            >
+              {s.name}
+            </button>
+          ))}
+        </>
+      )}
+
       <div className="ml-auto">
         <button
           onClick={() => setDark(d => !d)}
diff --git a/ui/src/pages/Pivot.jsx b/ui/src/pages/Pivot.jsx
index a85e956..3ab60a7 100644
--- a/ui/src/pages/Pivot.jsx
+++ b/ui/src/pages/Pivot.jsx
@@ -81,7 +81,7 @@ const LAYOUT_KEY = (source) => `psp_layout_${source}`
 const DEFAULT_PLUGIN_CONFIG = { edit_mode: 'SELECT_REGION' }
 
 
-export default function Pivot({ source }) {
+export default function Pivot({ source, selectedStack, setSelectedStack }) {
   const { dark } = useTheme()
   const viewerRef = useRef()
   const workerRef = useRef()
@@ -99,25 +99,13 @@ export default function Pivot({ source }) {
   const [sortCol, setSortCol] = useState(null)
   const [sortDir, setSortDir] = useState('asc')
 
-  // View selector: source or a stack
-  const [stacks, setStacks] = useState([])
-  const [selectedView, setSelectedView] = useState(source)   // name of active dfv view
-  const [viewType, setViewType] = useState('source')         // 'source' | 'stack'
-
-  useEffect(() => { api.getStacks().then(setStacks).catch(() => {}) }, [])
+  const selectedView = selectedStack ?? source
+  const viewType = selectedStack ? 'stack' : 'source'
 
   useEffect(() => {
     if (viewerRef.current) viewerRef.current.setAttribute('theme', dark ? 'Pro Dark' : 'Pro Light')
   }, [dark])
 
-  // When sidebar source changes, reset to that source
-  useEffect(() => {
-    if (viewType === 'source') setSelectedView(source)
-  }, [source])
-
-  function selectSource() { setViewType('source'); setSelectedView(source) }
-  function selectStack(name) { setViewType('stack'); setSelectedView(name) }
-
   // Named layouts — stacks use localStorage only (no server FK to sources)
   const [layouts, setLayouts] = useState([])
   const [activeLayoutId, setActiveLayoutId] = useState(null)
@@ -138,7 +126,7 @@ export default function Pivot({ source }) {
         : await api.getStackPivotLayouts(selectedView)
       setLayouts(rows)
     } catch {}
-  }, [selectedView, viewType])
+  }, [selectedView])
 
   useEffect(() => {
     if (!selectedView) return
@@ -442,29 +430,12 @@ export default function Pivot({ source }) {
   return (
     <div className="w-full h-full flex flex-col">
 
-      {/* Layout toolbar */}
-      <div className="flex items-center gap-2 px-3 py-1.5 bg-white border-b border-gray-200 flex-shrink-0">
-
-        {/* View selector */}
-        <div className="flex items-center gap-1 mr-2 border-r border-gray-200 pr-3">
-          <button
-            onClick={selectSource}
-            className={`text-xs rounded px-2 py-0.5 border transition-colors ${viewType === 'source' ? 'bg-blue-50 border-blue-300 text-blue-700' : 'bg-white border-gray-200 text-gray-500 hover:border-gray-400'}`}
-          >{source}</button>
-          {stacks.map(s => (
-            <button key={s.name}
-              onClick={() => selectStack(s.name)}
-              className={`text-xs rounded px-2 py-0.5 border transition-colors ${viewType === 'stack' && selectedView === s.name ? 'bg-purple-50 border-purple-300 text-purple-700' : 'bg-white border-gray-200 text-gray-500 hover:border-gray-400'}`}
-            >{s.name}</button>
-          ))}
-        </div>
-
-        <span className="text-xs text-gray-400 uppercase tracking-wide mr-1">Layouts</span>
-
+      {/* Layouts sub-bar */}
+      <div className="flex items-center gap-2 px-3 h-9 bg-white border-b border-gray-200 shrink-0 text-xs">
         {layouts.map(l => (
           <div key={l.id}
             onClick={() => applyLayout(l)}
-            className={`flex items-center gap-1 text-xs rounded px-2 py-0.5 cursor-pointer border transition-colors
+            className={`flex items-center gap-1 rounded px-2 py-0.5 cursor-pointer border transition-colors
               ${activeLayoutId === l.id
                 ? 'bg-blue-50 border-blue-300 text-blue-700'
                 : 'bg-white border-gray-200 text-gray-600 hover:border-gray-400'}`}>
@@ -477,7 +448,7 @@ export default function Pivot({ source }) {
 
         {activeLayoutId !== null && !showSaveAs && (
           <button onClick={handleSaveOver}
-            className="text-xs text-blue-500 hover:text-blue-700 border border-blue-200 rounded px-2 py-0.5">
+            className="text-blue-500 hover:text-blue-700 border border-blue-200 rounded px-2 py-0.5">
             Save
           </button>
         )}
@@ -490,30 +461,27 @@ export default function Pivot({ source }) {
               onChange={e => setSaveAsName(e.target.value)}
               onKeyDown={e => { if (e.key === 'Enter') handleSaveAs(); if (e.key === 'Escape') { setShowSaveAs(false); setSaveAsName('') } }}
               placeholder="Layout name…"
-              className="text-xs border border-gray-300 rounded px-2 py-0.5 w-36 focus:outline-none focus:border-blue-400"
+              className="border border-gray-300 rounded px-2 py-0.5 w-36 focus:outline-none focus:border-blue-400"
             />
-            <button onClick={handleSaveAs} className="text-xs text-blue-600 hover:text-blue-800 px-1">Save</button>
-            <button onClick={() => { setShowSaveAs(false); setSaveAsName('') }} className="text-xs text-gray-400 hover:text-gray-600 px-1">Cancel</button>
+            <button onClick={handleSaveAs} className="text-blue-600 hover:text-blue-800 px-1">Save</button>
+            <button onClick={() => { setShowSaveAs(false); setSaveAsName('') }} className="text-gray-400 hover:text-gray-600 px-1">Cancel</button>
           </div>
         ) : (
           <button
             onClick={() => setShowSaveAs(true)}
-            className="text-xs text-gray-400 hover:text-gray-600 border border-dashed border-gray-200 rounded px-2 py-0.5">
+            className="text-gray-400 hover:text-gray-600 border border-dashed border-gray-200 rounded px-2 py-0.5">
             + Save as…
           </button>
         )}
 
         {activeLayoutId !== null && (
-          <button onClick={handleResetToDefault}
-            className="text-xs text-gray-300 hover:text-gray-500 ml-1">
-            reset
-          </button>
+          <button onClick={handleResetToDefault} className="text-gray-300 hover:text-gray-500 ml-1">reset</button>
         )}
 
-        {layoutMsg && <span className="text-xs text-green-600 ml-1">{layoutMsg}</span>}
+        {layoutMsg && <span className="text-green-600 ml-1">{layoutMsg}</span>}
 
         <div className="ml-auto flex items-center gap-1">
-          <span className="text-xs text-gray-400">depth:</span>
+          <span className="text-gray-400">depth:</span>
           {[0, 1, 2, 3].map(d => (
             <button key={d} onClick={async () => {
               const v = viewerRef.current; if (!v) return
@@ -522,7 +490,7 @@ export default function Pivot({ source }) {
               const p = await v.getPlugin()
               await p.draw(view)
               expandDepthRef.current = d
-            }} className="text-xs border border-gray-200 rounded px-1.5 py-0.5 text-gray-500 hover:border-gray-400">
+            }} className="border border-gray-200 rounded px-1.5 py-0.5 text-gray-500 hover:border-gray-400">
               {d}
             </button>
           ))}
diff --git a/ui/src/pages/Records.jsx b/ui/src/pages/Records.jsx
index e91f66b..8b04f6d 100644
--- a/ui/src/pages/Records.jsx
+++ b/ui/src/pages/Records.jsx
@@ -271,8 +271,11 @@ export default function Records({ source }) {
   const displayCols = (rows.length > 0 ? Object.keys(rows[0]) : cols).filter(c => !HIDDEN_COLS.has(c))
   const visCols = cols.filter(c => !HIDDEN_COLS.has(c))
 
-  // All override cols: known from DB + new ones added this session
+  // For bulk bar: only established override keys (not all transformed cols)
   const allOverrideCols = [...new Set([...overrideCols, ...extraCols])]
+  // For the single-record panel: all transformed fields + any override keys + draft keys
+  const recordTransformedCols = Object.keys(selectedRecord?.transformed || {}).filter(c => !HIDDEN_COLS.has(c))
+  const knownCols = [...new Set([...overrideCols, ...recordTransformedCols, ...Object.keys(overrideDraft)])]
 
   const savedOverrides = selectedRecord?.overrides || {}
   const isDirty = Object.values(overrideDraft).some(v => String(v).trim())
@@ -493,59 +496,74 @@ export default function Records({ source }) {
                 </div>
               )}
 
-              {/* Read-only transformed fields */}
-              <div className="border-b border-gray-100">
-                {Object.entries(selectedRecord.transformed || {}).map(([field, val]) => (
-                  <div key={field} className="flex items-baseline gap-2 px-3 py-1 border-t border-gray-50 first:border-t-0">
-                    <span className="text-xs font-mono text-gray-400 w-28 shrink-0 truncate">{field}</span>
-                    <span className="text-xs font-mono text-gray-600 truncate">{formatVal(val) ?? <span className="text-gray-300">—</span>}</span>
-                  </div>
-                ))}
+              <div className="flex items-center justify-between px-3 py-1.5 bg-gray-50 border-b border-gray-100 shrink-0">
+                <span className="text-xs font-medium text-gray-500 uppercase tracking-wide">Fields</span>
+                <button
+                  onClick={() => setExtraCols(ec => [...ec, ''])}
+                  className="text-gray-400 hover:text-gray-700 font-medium text-sm leading-none"
+                  title="Add field">+</button>
               </div>
 
-              {/* Override cols — Mappings-style */}
-              <div className="flex-1">
-                <div className="flex items-center justify-between px-3 py-1.5 bg-gray-50 border-b border-gray-100">
-                  <span className="text-xs font-medium text-gray-500 uppercase tracking-wide">Override</span>
-                  <button
-                    onClick={() => setExtraCols(ec => [...ec, ''])}
-                    className="text-gray-400 hover:text-gray-700 font-medium text-sm leading-none"
-                    title="Add column">+</button>
-                </div>
-
+              <div className="flex-1 overflow-y-auto">
                 <table className="w-full text-xs">
                   <tbody>
-                    {allOverrideCols.map((col, idx) => {
-                      const isExtra = idx >= overrideCols.length
-                      const suggestions = [...(globalValues[col] || [])].sort()
+                    {knownCols.map(col => {
                       const val = overrideDraft[col] ?? ''
+                      const placeholder = formatVal(selectedRecord.transformed?.[col]) ?? ''
+                      const suggestions = [...(globalValues[col] || [])].sort()
                       return (
-                        <tr key={col || `extra-${idx}`} className="border-t border-gray-50">
-                          <td className="px-3 py-1 w-28 shrink-0">
-                            {isExtra ? (
-                              <input
-                                className="w-full text-xs font-mono border border-gray-200 rounded px-1 py-0.5 focus:outline-none focus:border-blue-400"
-                                value={col}
-                                placeholder="field name"
-                                onChange={e => {
-                                  const newName = e.target.value
-                                  setExtraCols(ec => { const c = [...ec]; c[idx - overrideCols.length] = newName; return c })
-                                  if (val) setOverrideDraft(d => {
-                                    const n = { ...d }
-                                    delete n[col]
-                                    if (newName) n[newName] = val
-                                    return n
-                                  })
-                                }}
-                              />
-                            ) : (
-                              <span className="font-mono text-gray-500 truncate block">{col}</span>
-                            )}
+                        <tr key={col} className="border-t border-gray-50">
+                          <td className="px-3 py-1.5 w-28 shrink-0">
+                            <span className="font-mono text-gray-500 truncate block">{col}</span>
                           </td>
-                          <td className="px-1 py-1">
+                          <td className="px-1 py-1.5">
                             <AutocompleteInput
                               className={`w-full text-xs font-mono px-2 py-0.5 rounded border focus:outline-none ${
-                                val ? 'border-amber-300 bg-amber-50 text-amber-800' : 'border-gray-200 text-gray-700'
+                                val ? 'border-amber-300 bg-amber-50 text-amber-800' : 'border-gray-200 text-gray-600'
+                              }`}
+                              value={val}
+                              placeholder={placeholder}
+                              onChange={v => setOverrideDraft(d => ({ ...d, [col]: v }))}
+                              onEnter={handleSaveOverrides}
+                              suggestions={suggestions}
+                            />
+                          </td>
+                          <td className="pr-2 text-center w-6">
+                            {val && (
+                              <button
+                                onClick={() => setOverrideDraft(d => { const n = { ...d }; delete n[col]; return n })}
+                                className="text-gray-300 hover:text-red-400 leading-none text-base">×</button>
+                            )}
+                          </td>
+                        </tr>
+                      )
+                    })}
+                    {extraCols.map((col, i) => {
+                      const val = overrideDraft[col] ?? ''
+                      const suggestions = [...(globalValues[col] || [])].sort()
+                      return (
+                        <tr key={`extra-${i}`} className="border-t border-gray-50">
+                          <td className="px-3 py-1.5 w-28 shrink-0">
+                            <input
+                              className="w-full text-xs font-mono border border-gray-200 rounded px-1 py-0.5 focus:outline-none focus:border-blue-400"
+                              value={col}
+                              placeholder="field name"
+                              onChange={e => {
+                                const newName = e.target.value
+                                setExtraCols(ec => { const c = [...ec]; c[i] = newName; return c })
+                                if (val) setOverrideDraft(d => {
+                                  const n = { ...d }
+                                  delete n[col]
+                                  if (newName) n[newName] = val
+                                  return n
+                                })
+                              }}
+                            />
+                          </td>
+                          <td className="px-1 py-1.5">
+                            <AutocompleteInput
+                              className={`w-full text-xs font-mono px-2 py-0.5 rounded border focus:outline-none ${
+                                val ? 'border-amber-300 bg-amber-50 text-amber-800' : 'border-gray-200 text-gray-600'
                               }`}
                               value={val}
                               onChange={v => setOverrideDraft(d => ({ ...d, [col]: v }))}
@@ -553,7 +571,7 @@ export default function Records({ source }) {
                               suggestions={suggestions}
                             />
                           </td>
-                          <td className="pr-2 text-center">
+                          <td className="pr-2 text-center w-6">
                             {val && (
                               <button
                                 onClick={() => setOverrideDraft(d => { const n = { ...d }; delete n[col]; return n })}
@@ -567,7 +585,7 @@ export default function Records({ source }) {
                 </table>
               </div>
 
-              <div className="flex gap-2 px-3 py-2 border-t border-gray-100">
+              <div className="flex gap-2 px-3 py-2 border-t border-gray-100 shrink-0">
                 <button
                   onClick={handleSaveOverrides}
                   disabled={panelSaving || !isDirty}
diff --git a/ui/src/pages/Stacks.jsx b/ui/src/pages/Stacks.jsx
index 75ed9be..1ce8d00 100644
--- a/ui/src/pages/Stacks.jsx
+++ b/ui/src/pages/Stacks.jsx
@@ -675,7 +675,7 @@ function StackPanel({ stack, sources, onUpdated, onStale, onViewGenerated, onSql
 
 // ── Main page ──────────────────────────────────────────────────────────────────
 
-export default function Stacks({ sources, onStackStale, onStackViewGenerated }) {
+export default function Stacks({ sources, onStackStale, onStackViewGenerated, onStacksChange }) {
   const [stacks, setStacks] = useState([])
   const [selected, setSelected] = useState(null)
   const [stackDetail, setStackDetail] = useState(null)
@@ -716,6 +716,7 @@ export default function Stacks({ sources, onStackStale, onStackViewGenerated })
       await api.createStack({ name: newName, fields: [] })
       setNewName(''); setCreating(false)
       await load()
+      onStacksChange?.()
       loadDetail(newName)
     } catch (e) { setError(e.message) }
   }
@@ -725,6 +726,7 @@ export default function Stacks({ sources, onStackStale, onStackViewGenerated })
     await api.deleteStack(name)
     if (selected === name) { setSelected(null); setStackDetail(null); setSqlDraft(''); setSqlResult(null) }
     load()
+    onStacksChange?.()
   }
 
   async function runSql() {