diff --git a/package.json b/package.json
index 3e36665..05dea3a 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "displayName": "objdiff",
   "description": "A local diffing tool for decompilation projects",
   "publisher": "decomp-dev",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/encounter/objdiff-web"
@@ -17,13 +17,14 @@
     "extension:build": "rsbuild build --env-mode extension",
     "extension:dev": "rsbuild build -w -m development --env-mode extension",
     "extension:package": "pnpm run extension:build && vsce package --no-dependencies",
-    "extension:publish": "pnpm run extension:build && vsce publish --no-dependencies"
+    "extension:publish": "pnpm run extension:build && vsce publish --no-dependencies",
+    "postinstall": "tsx update-config.ts"
   },
   "dependencies": {
     "@vscode/codicons": "^0.0.36",
     "clsx": "^2.1.1",
     "memoize-one": "^6.0.0",
-    "objdiff-wasm": "3.0.0-beta.6",
+    "objdiff-wasm": "3.0.0-beta.7",
     "picomatch": "^4.0.2",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
@@ -277,6 +278,21 @@
               null,
               null
             ]
+          },
+          "objdiff.mips.registerPrefix": {
+            "type": "boolean",
+            "description": "Display MIPS register names with a '$' prefix.",
+            "default": false
+          }
+        }
+      },
+      {
+        "title": "PowerPC",
+        "properties": {
+          "objdiff.ppc.calculatePoolRelocations": {
+            "type": "boolean",
+            "description": "Display pooled data references in functions as fake relocations.",
+            "default": true
           }
         }
       },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a830b9d..0a7c171 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -18,8 +18,8 @@ importers:
         specifier: ^6.0.0
         version: 6.0.0
       objdiff-wasm:
-        specifier: 3.0.0-beta.6
-        version: 3.0.0-beta.6
+        specifier: 3.0.0-beta.7
+        version: 3.0.0-beta.7
       picomatch:
         specifier: ^4.0.2
         version: 4.0.2
@@ -1400,8 +1400,8 @@ packages:
   nth-check@2.1.1:
     resolution: {integrity: sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==}
 
-  objdiff-wasm@3.0.0-beta.6:
-    resolution: {integrity: sha512-0Z0V2DwiWQLU5wzacCzZjaHLstnIOFFaIIAny9YQXahpE+5rYtzbDlYfB9Bf74yS6a/E6F74hA/uxG1WwJxbXg==}
+  objdiff-wasm@3.0.0-beta.7:
+    resolution: {integrity: sha512-88xQK8b5ZhEjQnp3vOQL7i+29Yd1dIPPXCnTa8eVEMvSfelQigXznpDHkoZRcxDng7xFi8Uuhp4FyFEzh12U5Q==}
 
   object-inspect@1.13.4:
     resolution: {integrity: sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew==}
@@ -3221,7 +3221,7 @@ snapshots:
     dependencies:
       boolbase: 1.0.0
 
-  objdiff-wasm@3.0.0-beta.6: {}
+  objdiff-wasm@3.0.0-beta.7: {}
 
   object-inspect@1.13.4: {}
 
diff --git a/webview/common/Header.module.css b/webview/common/Header.module.css
index 209be6a..260135a 100644
--- a/webview/common/Header.module.css
+++ b/webview/common/Header.module.css
@@ -38,3 +38,7 @@
 .missing {
   color: var(--color-blue);
 }
+
+.spacer {
+  flex: 1 1 0;
+}
diff --git a/webview/state.ts b/webview/state.ts
index 8b3bc30..015ec3e 100644
--- a/webview/state.ts
+++ b/webview/state.ts
@@ -391,10 +391,26 @@ const handleMessage = (event: MessageEvent) => {
         if (diffConfig == null) {
           diffConfig = buildDiffConfig(message.configProperties);
         }
-        newState.leftObject = diff.Object.parse(
-          new Uint8Array(message.leftObject),
-          diffConfig,
-        );
+        try {
+          newState.leftObject = diff.Object.parse(
+            new Uint8Array(message.leftObject),
+            diffConfig,
+          );
+          newState.leftStatus = {
+            success: true,
+            cmdline: '',
+            stdout: '',
+            stderr: '',
+          };
+        } catch (e) {
+          newState.leftObject = null;
+          newState.leftStatus = {
+            success: false,
+            cmdline: '',
+            stdout: 'Failed to parse object',
+            stderr: e instanceof Error ? e.message : String(e),
+          };
+        }
       }
     }
     if (message.rightObject !== undefined) {
@@ -404,10 +420,26 @@ const handleMessage = (event: MessageEvent) => {
         if (diffConfig == null) {
           diffConfig = buildDiffConfig(message.configProperties);
         }
-        newState.rightObject = diff.Object.parse(
-          new Uint8Array(message.rightObject),
-          diffConfig,
-        );
+        try {
+          newState.rightObject = diff.Object.parse(
+            new Uint8Array(message.rightObject),
+            diffConfig,
+          );
+          newState.rightStatus = {
+            success: true,
+            cmdline: '',
+            stdout: '',
+            stderr: '',
+          };
+        } catch (e) {
+          newState.rightObject = null;
+          newState.rightStatus = {
+            success: false,
+            cmdline: '',
+            stdout: 'Failed to parse object',
+            stderr: e instanceof Error ? e.message : String(e),
+          };
+        }
       }
     }
     for (const k in newState) {
diff --git a/webview/views/SymbolsView.tsx b/webview/views/SymbolsView.tsx
index 3c89b99..5a9c4cc 100644
--- a/webview/views/SymbolsView.tsx
+++ b/webview/views/SymbolsView.tsx
@@ -4,7 +4,7 @@ import styles from './SymbolsView.module.css';
 import clsx from 'clsx';
 import memoizeOne from 'memoize-one';
 import { type diff, display } from 'objdiff-wasm';
-import { memo, useMemo } from 'react';
+import { memo, useCallback, useMemo } from 'react';
 import AutoSizer from 'react-virtualized-auto-sizer';
 import {
   FixedSizeList,
@@ -12,6 +12,7 @@ import {
   areEqual,
 } from 'react-window';
 import { useShallow } from 'zustand/react/shallow';
+import type { BuildStatus } from '../../shared/messages';
 import { createContextMenu, renderContextItems } from '../common/ContextMenu';
 import TooltipShared from '../common/TooltipShared';
 import {
@@ -23,9 +24,11 @@ import {
 } from '../state';
 import { percentClass, useFontSize } from '../util/util';
 
+type Side = keyof UnitScrollOffsets;
+
 type SymbolTooltipContent = {
   symbolRef: display.SectionDisplaySymbol;
-  side: keyof UnitScrollOffsets;
+  side: Side;
 };
 
 const { ContextMenuProvider, useContextMenu } =
@@ -75,7 +78,7 @@ const SymbolRow = ({
   obj: diff.ObjectDiff;
   section: SectionData;
   symbolRef: display.SectionDisplaySymbol;
-  side: keyof UnitScrollOffsets;
+  side: Side;
   style?: React.CSSProperties;
 }) => {
   const setSelectedSymbol = useAppStore((state) => state.setSelectedSymbol);
@@ -164,10 +167,11 @@ const SymbolRow = ({
 type SectionData = display.SectionDisplay & { collapsed: boolean };
 
 type ItemData = {
+  status: BuildStatus | null;
   obj: diff.ObjectDiff | undefined;
   itemCount: number;
   sections: SectionData[];
-  side: keyof UnitScrollOffsets;
+  side: Side;
   setSectionCollapsed: (section: string, collapsed: boolean) => void;
 };
 
@@ -215,14 +219,16 @@ const SymbolListRow = memo(
 );
 
 const createItemDataFn = (
+  status: BuildStatus | null,
   obj: diff.ObjectDiff | undefined,
   collapsedSections: Record<string, boolean>,
   search: string | null,
-  side: keyof UnitScrollOffsets,
+  side: Side,
   setSectionCollapsed: (section: string, collapsed: boolean) => void,
 ): ItemData => {
   if (!obj) {
     return {
+      status,
       obj,
       itemCount: 0,
       sections: [],
@@ -264,6 +270,7 @@ const createItemDataFn = (
     });
   }
   return {
+    status,
     obj,
     itemCount,
     sections,
@@ -275,11 +282,19 @@ const createItemDataLeft = memoizeOne(createItemDataFn);
 const createItemDataRight = memoizeOne(createItemDataFn);
 
 const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
-  const { buildRunning, currentUnit, hasProjectConfig } = useExtensionStore(
+  const {
+    buildRunning,
+    currentUnit,
+    hasProjectConfig,
+    leftStatus,
+    rightStatus,
+  } = useExtensionStore(
     useShallow((state) => ({
       buildRunning: state.buildRunning,
       currentUnit: state.currentUnit,
       hasProjectConfig: state.projectConfig != null,
+      leftStatus: state.leftStatus,
+      rightStatus: state.rightStatus,
     })),
   );
   const currentUnitName = currentUnit?.name || '';
@@ -307,14 +322,14 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
     () => useAppStore.getState().getUnitState(currentUnitName).scrollOffsets,
     [currentUnitName],
   );
-  const setLeftSectionCollapsed = useMemo(
-    () => (section: string, collapsed: boolean) => {
+  const setLeftSectionCollapsed = useCallback(
+    (section: string, collapsed: boolean) => {
       setUnitSectionCollapsed(currentUnitName, section, 'left', collapsed);
     },
     [currentUnitName, setUnitSectionCollapsed],
   );
-  const setRightSectionCollapsed = useMemo(
-    () => (section: string, collapsed: boolean) => {
+  const setRightSectionCollapsed = useCallback(
+    (section: string, collapsed: boolean) => {
       setUnitSectionCollapsed(currentUnitName, section, 'right', collapsed);
     },
     [currentUnitName, setUnitSectionCollapsed],
@@ -324,12 +339,21 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
     height: number,
     width: number,
     itemData: ItemData,
-    side: keyof UnitScrollOffsets,
+    side: Side,
   ) => {
     if (!itemData.obj) {
+      if (!itemData.status || itemData.status.success) {
+        return (
+          <div className={clsx(styles.symbolList, styles.noObject)}>
+            No object configured
+          </div>
+        );
+      }
       return (
         <div className={clsx(styles.symbolList, styles.noObject)}>
-          No object configured
+          <pre>{itemData.status.cmdline}</pre>
+          <pre>{itemData.status.stdout}</pre>
+          <pre>{itemData.status.stderr}</pre>
         </div>
       );
     }
@@ -357,6 +381,7 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
 
   const itemSize = useFontSize() * 1.33;
   const leftItemData = createItemDataLeft(
+    leftStatus,
     diff.left,
     collapsedSections.left,
     search,
@@ -364,6 +389,7 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
     setLeftSectionCollapsed,
   );
   const rightItemData = createItemDataRight(
+    rightStatus,
     diff.right,
     collapsedSections.right,
     search,
@@ -371,34 +397,49 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
     setRightSectionCollapsed,
   );
 
+  const setAllSections = (side: Side, value: boolean) => {
+    if (side === 'left') {
+      for (const section of leftItemData.sections) {
+        setUnitSectionCollapsed(currentUnitName, section.id, 'left', value);
+      }
+    } else {
+      for (const section of rightItemData.sections) {
+        setUnitSectionCollapsed(currentUnitName, section.id, 'right', value);
+      }
+    }
+  };
+
+  const expandCollapse = (side: Side) => (
+    <>
+      <div className={headerStyles.spacer} />
+      <button title="Collapse all" onClick={() => setAllSections(side, true)}>
+        <span className="codicon codicon-chevron-up" />
+      </button>
+      <button title="Expand all" onClick={() => setAllSections(side, false)}>
+        <span className="codicon codicon-chevron-down" />
+      </button>
+    </>
+  );
+
   const unitNameRow = (
-    <div className={headerStyles.row}>
-      <span className={clsx(headerStyles.label, headerStyles.emphasized)}>
-        {currentUnitName}
-      </span>
-    </div>
+    <span className={clsx(headerStyles.label, headerStyles.emphasized)}>
+      {currentUnitName}
+    </span>
   );
 
   const filterRow = (
-    <div className={headerStyles.row}>
-      <input
-        type="text"
-        placeholder="Filter symbols"
-        value={search || ''}
-        onChange={(e) => {
-          const value = e.target.value;
-          setUnitSearch(currentUnitName, value);
-        }}
-      />
-    </div>
+    <input
+      type="text"
+      placeholder="Filter symbols"
+      value={search || ''}
+      onChange={(e) => setUnitSearch(currentUnitName, e.target.value)}
+    />
   );
 
   const settingsRow = (
-    <div className={headerStyles.row}>
-      <button title="Settings" onClick={() => setCurrentView('settings')}>
-        <span className="codicon codicon-settings-gear" />
-      </button>
-    </div>
+    <button title="Settings" onClick={() => setCurrentView('settings')}>
+      <span className="codicon codicon-settings-gear" />
+    </button>
   );
 
   return (
@@ -417,7 +458,10 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
             ) : null}
             <span className={headerStyles.label}>Target object</span>
           </div>
-          {currentUnitName ? unitNameRow : filterRow}
+          <div className={headerStyles.row}>
+            {currentUnitName ? unitNameRow : filterRow}
+            {expandCollapse('left')}
+          </div>
         </div>
         <div className={headerStyles.column}>
           <div className={headerStyles.row}>
@@ -432,7 +476,10 @@ const SymbolsView = ({ diff }: { diff: diff.DiffResult }) => {
             )}
             <span className={headerStyles.label}>Base object</span>
           </div>
-          {currentUnitName ? filterRow : settingsRow}
+          <div className={headerStyles.row}>
+            {currentUnitName ? filterRow : settingsRow}
+            {expandCollapse('right')}
+          </div>
         </div>
       </div>
       <div className={styles.symbols}>
diff --git a/webview/views/UnitsView.module.css b/webview/views/UnitsView.module.css
index 48ab185..180d18c 100644
--- a/webview/views/UnitsView.module.css
+++ b/webview/views/UnitsView.module.css
@@ -33,6 +33,10 @@
   margin-right: 0.5em;
 }
 
+.indent-highlighted {
+  border-right-color: var(--color-muted);
+}
+
 .toggle {
   display: inline-block;
   height: var(--list-row-height);
@@ -55,5 +59,5 @@
 }
 
 .collapsed {
-  opacity: 0.75;
+  color: color-mix(in srgb, var(--foreground) 75%, transparent);
 }
diff --git a/webview/views/UnitsView.tsx b/webview/views/UnitsView.tsx
index 5f09495..ee035ca 100644
--- a/webview/views/UnitsView.tsx
+++ b/webview/views/UnitsView.tsx
@@ -2,7 +2,7 @@ import styles from './UnitsView.module.css';
 
 import clsx from 'clsx';
 import memoizeOne from 'memoize-one';
-import { memo, useMemo } from 'react';
+import { memo, useMemo, useState } from 'react';
 import AutoSizer from 'react-virtualized-auto-sizer';
 import {
   FixedSizeList,
@@ -26,6 +26,7 @@ type DirectoryItem = {
   label: string;
   id: string;
   collapsed: boolean;
+  path: string[];
 };
 
 type UnitItem = {
@@ -34,6 +35,7 @@ type UnitItem = {
   label: string;
   id: string;
   unit: Unit;
+  path: string[];
 };
 
 type Item = DirectoryItem | UnitItem;
@@ -41,10 +43,16 @@ type Item = DirectoryItem | UnitItem;
 type ItemData = {
   unitsCount: number;
   items: Item[];
+  highlightedPath: string | null;
+  setHighlightedPath: (id: string | null) => void;
 };
 
 const UnitRow = memo(
-  ({ index, style, data: { items } }: ListChildComponentProps<ItemData>) => {
+  ({
+    index,
+    style,
+    data: { items, highlightedPath, setHighlightedPath },
+  }: ListChildComponentProps<ItemData>) => {
     const setCollapsedUnit = useAppStore((state) => state.setCollapsedUnit);
     const item = items[index];
     const classes = [styles.row];
@@ -65,7 +73,15 @@ const UnitRow = memo(
     }
     const indentItems = [];
     for (let i = 0; i < item.indent; i++) {
-      indentItems.push(<span key={i} className={styles.indent} />);
+      indentItems.push(
+        <span
+          key={i}
+          className={clsx(
+            styles.indent,
+            item.path[i] === highlightedPath && styles.indentHighlighted,
+          )}
+        />,
+      );
     }
     if (item.type === 'directory') {
       indentItems.push(
@@ -84,8 +100,22 @@ const UnitRow = memo(
         className={clsx(classes)}
         style={style}
         onClick={() => {
-          if (item.type === 'unit') setCurrentUnit(item.unit);
-          else setCollapsedUnit(item.id, !item.collapsed);
+          if (item.type === 'unit') {
+            setCurrentUnit(item.unit);
+          } else {
+            const collapsed = !item.collapsed;
+            setCollapsedUnit(item.id, collapsed);
+            setHighlightedPath(
+              collapsed ? item.path[item.path.length - 1] : item.id,
+            );
+          }
+        }}
+        onMouseEnter={() => {
+          setHighlightedPath(
+            item.type === 'unit' || item.collapsed
+              ? item.path[item.path.length - 1]
+              : item.id,
+          );
         }}
       >
         {indentItems}
@@ -111,10 +141,20 @@ function pushTreeItems(item: TreeItem | UnitItem, out: Item[]) {
   }
 }
 
+const buildPath = (split: string[]) => {
+  const path = [];
+  for (let i = 0; i < split.length - 1; i++) {
+    path.push(split.slice(0, i + 1).join('/'));
+  }
+  return path;
+};
+
 const createItemData = memoizeOne(
   (
     config: ProjectConfig | null,
     collapsedUnits: Record<string, boolean>,
+    highlightedPath: string | null,
+    setHighlightedPath: (id: string | null) => void,
   ): ItemData => {
     const units = config?.units ?? [];
     const map = new Map<string, TreeItem>();
@@ -125,7 +165,8 @@ const createItemData = memoizeOne(
       let parent: TreeItem | null = null;
       for (let i = 0; i < split.length - 1; i++) {
         const name = split[i];
-        const key = split.slice(0, i + 1).join('/');
+        const dirPath = split.slice(0, i + 1);
+        const key = dirPath.join('/');
         let item = map.get(key);
         if (!item) {
           item = {
@@ -135,6 +176,7 @@ const createItemData = memoizeOne(
             id: key,
             collapsed: !!collapsedUnits[key],
             children: [],
+            path: buildPath(dirPath),
           };
           if (parent) {
             parent.children.push(item);
@@ -151,6 +193,7 @@ const createItemData = memoizeOne(
         label: split[split.length - 1],
         id: path,
         unit,
+        path: buildPath(split),
       };
       if (parent) {
         parent.children.push(unitItem);
@@ -162,7 +205,12 @@ const createItemData = memoizeOne(
     for (const item of rootItems) {
       pushTreeItems(item, items);
     }
-    return { unitsCount: units.length, items };
+    return {
+      unitsCount: units.length,
+      items,
+      highlightedPath,
+      setHighlightedPath,
+    };
   },
 );
 
@@ -180,7 +228,13 @@ const UnitsView = () => {
     [],
   );
   const itemSize = useFontSize() * 1.33;
-  const itemData = createItemData(config, collapsedUnits);
+  const [highlightedPath, setHighlightedPath] = useState<string | null>(null);
+  const itemData = createItemData(
+    config,
+    collapsedUnits,
+    highlightedPath,
+    setHighlightedPath,
+  );
   return (
     <>
       <div className={headerStyles.header}>