diff --git a/scripts/format-scope.json b/scripts/format-scope.json
index 29b3d5138..e375bee6d 100644
--- a/scripts/format-scope.json
+++ b/scripts/format-scope.json
@@ -208,5 +208,10 @@
   "src/ui/cockpitTrackingController.js",
   "src/cockpitMath.js",
   "src/cockpitUtilityLayout.js",
-  "src/cockpitVisionPolicy.js"
+  "src/cockpitVisionPolicy.js",
+  "src/ui/scenes.js",
+  "src/ui/sceneControls.js",
+  "src/ui/scenePresentation.js",
+  "src/ui/sceneControls.test.mjs",
+  "scripts/qa-scene-controls.mjs"
 ]
diff --git a/scripts/qa-scene-controls.mjs b/scripts/qa-scene-controls.mjs
index af124f04e..f6606de27 100644
--- a/scripts/qa-scene-controls.mjs
+++ b/scripts/qa-scene-controls.mjs
@@ -6,123 +6,335 @@ import puppeteer from 'puppeteer';
 
 const shots = path.resolve('qa-shots/scene-controls');
 fs.mkdirSync(shots, { recursive: true });
-const browser = await puppeteer.launch({ headless: true, args: ['--no-sandbox', ...(process.platform === 'darwin' ? ['--use-angle=metal', '--enable-gpu'] : ['--use-gl=angle', '--use-angle=swiftshader'])] });
+const browser = await puppeteer.launch({
+  headless: true,
+  args: [
+    '--no-sandbox',
+    ...(process.platform === 'darwin'
+      ? ['--use-angle=metal', '--enable-gpu']
+      : ['--use-gl=angle', '--use-angle=swiftshader']),
+  ],
+});
 const page = await browser.newPage();
 const errors = [];
 page.on('pageerror', (error) => errors.push(error.message));
 let promptValue = 'QA Scene';
-page.on('dialog', async (dialog) => { await dialog.accept(dialog.type() === 'prompt' ? promptValue : undefined); });
+page.on('dialog', async (dialog) => {
+  await dialog.accept(dialog.type() === 'prompt' ? promptValue : undefined);
+});
 let failures = 0;
-function check(name, ok) { console.log(`[${ok ? 'PASS' : 'FAIL'}] ${name}`); if (!ok) failures++; }
+function check(name, ok) {
+  console.log(`[${ok ? 'PASS' : 'FAIL'}] ${name}`);
+  if (!ok) failures++;
+}
 try {
   await page.setViewport({ width: 1440, height: 900 });
-  await page.goto(`${process.env.QA_BASE_URL || 'http://localhost:4173'}/?welcome=0`, { waitUntil: 'domcontentloaded' });
-  await page.waitForFunction(() => window.__godsEyeView?.sceneDirector?._controls && document.getElementById('loading-screen')?.classList.contains('hidden'), { timeout: 60000 });
+  await page.goto(
+    `${process.env.QA_BASE_URL || 'http://localhost:4173'}/?welcome=0`,
+    { waitUntil: 'domcontentloaded' },
+  );
+  await page.waitForFunction(
+    () =>
+      window.__godsEyeView?.sceneDirector?._controls &&
+      document.getElementById('loading-screen')?.classList.contains('hidden'),
+    { timeout: 60000 },
+  );
   await page.click('[data-collapse-target="scene-panel"]');
   await page.click('#scene-new-btn');
-  await page.waitForFunction(() => document.querySelector('#scene-select option:checked')?.textContent === 'QA Scene');
-  check('New creates and selects a persisted empty scene', await page.evaluate(() => {
-    const director = window.__godsEyeView.sceneDirector;
-    const saved = JSON.parse(localStorage.getItem('godsEyeView.sceneProject.v2'));
-    return director._getSelectedScene().shots.length === 0 && !!document.querySelector('.scene-shot-empty') && saved.scenes.some((scene) => scene.title === 'QA Scene');
-  }));
+  await page.waitForFunction(
+    () =>
+      document.querySelector('#scene-select option:checked')?.textContent ===
+      'QA Scene',
+  );
+  check(
+    'New creates and selects a persisted empty scene',
+    await page.evaluate(() => {
+      const director = window.__godsEyeView.sceneDirector;
+      const saved = JSON.parse(
+        localStorage.getItem('godsEyeView.sceneProject.v2'),
+      );
+      return (
+        director._getSelectedScene().shots.length === 0 &&
+        !!document.querySelector('.scene-shot-empty') &&
+        saved.scenes.some((scene) => scene.title === 'QA Scene')
+      );
+    }),
+  );
   await page.click('#scene-capture-btn');
-  await page.waitForFunction(() => document.querySelectorAll('.scene-shot-row').length === 1);
-  check('Capture stores the actual camera and visual state', await page.evaluate(() => {
-    const director = window.__godsEyeView.sceneDirector;
-    const shot = director._getSelectedScene().shots[0];
-    const current = director.styleManager.getCameraState();
-    return Number.isFinite(shot.camera.lat) && Math.abs(shot.camera.lat - current.lat) < 0.01 && shot.visual.style === director.styleManager.getVisualState().style;
-  }));
+  await page.waitForFunction(
+    () => document.querySelectorAll('.scene-shot-row').length === 1,
+  );
+  check(
+    'Capture stores the actual camera and visual state',
+    await page.evaluate(() => {
+      const director = window.__godsEyeView.sceneDirector;
+      const shot = director._getSelectedScene().shots[0];
+      const current = director.styleManager.getCameraState();
+      return (
+        Number.isFinite(shot.camera.lat) &&
+        Math.abs(shot.camera.lat - current.lat) < 0.01 &&
+        shot.visual.style === director.styleManager.getVisualState().style
+      );
+    }),
+  );
   promptValue = '<b>QA shot</b>';
   await page.click('.scene-shot-label', { clickCount: 2 });
-  await page.waitForFunction(() => document.querySelector('.scene-shot-label')?.textContent === '<b>QA shot</b>');
-  check('Rename persists literal text without interpreting markup', await page.evaluate(() => !document.querySelector('.scene-shot-label b') && JSON.parse(localStorage.getItem('godsEyeView.sceneProject.v2')).scenes.some((scene) => scene.shots.some((shot) => shot.title === '<b>QA shot</b>'))));
+  await page.waitForFunction(
+    () =>
+      document.querySelector('.scene-shot-label')?.textContent ===
+      '<b>QA shot</b>',
+  );
+  check(
+    'Rename persists literal text without interpreting markup',
+    await page.evaluate(
+      () =>
+        !document.querySelector('.scene-shot-label b') &&
+        JSON.parse(
+          localStorage.getItem('godsEyeView.sceneProject.v2'),
+        ).scenes.some((scene) =>
+          scene.shots.some((shot) => shot.title === '<b>QA shot</b>'),
+        ),
+    ),
+  );
   await page.click('#scene-capture-btn');
-  await page.waitForFunction(() => document.querySelectorAll('.scene-shot-row').length === 2);
+  await page.waitForFunction(
+    () => document.querySelectorAll('.scene-shot-row').length === 2,
+  );
   await page.click('.scene-shot-label');
-  check('Shot selection and Update use the selected shot', await page.evaluate(() => {
-    const director = window.__godsEyeView.sceneDirector;
-    const scene = director._getSelectedScene();
-    const count = scene.shots.length;
-    document.getElementById('scene-update-shot-btn').click();
-    return director._selectedShotId === scene.shots[0].id && scene.shots.length === count && document.querySelector('.scene-shot-row.active .scene-shot-label').textContent === scene.shots[0].title;
-  }));
+  check(
+    'Shot selection and Update use the selected shot',
+    await page.evaluate(() => {
+      const director = window.__godsEyeView.sceneDirector;
+      const scene = director._getSelectedScene();
+      const count = scene.shots.length;
+      document.getElementById('scene-update-shot-btn').click();
+      return (
+        director._selectedShotId === scene.shots[0].id &&
+        scene.shots.length === count &&
+        document.querySelector('.scene-shot-row.active .scene-shot-label')
+          .textContent === scene.shots[0].title
+      );
+    }),
+  );
   await page.evaluate(() => {
     window.__sceneExports = [];
     const create = URL.createObjectURL.bind(URL);
     URL.createObjectURL = (blob) => {
-      if (blob.type === 'application/json') window.__sceneExports.push(blob.text());
+      if (blob.type === 'application/json')
+        window.__sceneExports.push(blob.text());
       return create(blob);
     };
   });
   await page.click('#scene-export-btn');
-  const exported = await page.evaluate(async () => JSON.parse(await window.__sceneExports[0]));
-  check('Export produces the current project JSON', exported.scenes.some((scene) => scene.title === 'QA Scene' && scene.shots.length === 2));
+  const exported = await page.evaluate(async () =>
+    JSON.parse(await window.__sceneExports[0]),
+  );
+  check(
+    'Export produces the current project JSON',
+    exported.scenes.some(
+      (scene) => scene.title === 'QA Scene' && scene.shots.length === 2,
+    ),
+  );
   // Keep real camera/style playback while isolating this control check from
   // live provider availability. Layer transactions are covered by their suites.
   const scene = exported.scenes.find((item) => item.title === 'QA Scene');
-  scene.shots = scene.shots.slice(0, 1).map((shot) => ({ ...shot, durationSec: 0.4, holdSec: 10, layers: {} }));
+  scene.shots = scene.shots
+    .slice(0, 1)
+    .map((shot) => ({ ...shot, durationSec: 0.4, holdSec: 10, layers: {} }));
   const fixture = { ...exported, scenes: [scene] };
   const projectFile = path.join(shots, 'project.json');
   fs.writeFileSync(projectFile, JSON.stringify(fixture));
   const input = await page.$('#scene-import-file');
   await input.uploadFile(projectFile);
-  await page.waitForFunction(() => document.getElementById('scene-status').textContent === 'Imported project.json');
-  check('Import replaces the project and clears the file input', await page.evaluate(() => window.__godsEyeView.sceneDirector._project.scenes.length === 1 && document.querySelectorAll('.scene-shot-row').length === 1 && document.getElementById('scene-import-file').value === ''));
+  await page.waitForFunction(
+    () =>
+      document.getElementById('scene-status').textContent ===
+      'Imported project.json',
+  );
+  check(
+    'Import replaces the project and clears the file input',
+    await page.evaluate(
+      () =>
+        window.__godsEyeView.sceneDirector._project.scenes.length === 1 &&
+        document.querySelectorAll('.scene-shot-row').length === 1 &&
+        document.getElementById('scene-import-file').value === '',
+    ),
+  );
   await page.click('.scene-shot-btn');
-  await page.waitForFunction(() => document.getElementById('scene-status').textContent.startsWith('Loaded:'), { timeout: 30000 });
-  check('LOAD completes the real visual and camera operation', await page.evaluate(() => !window.__godsEyeView.sceneDirector.running && document.getElementById('scene-status').textContent.includes('<b>QA shot</b>')));
+  await page.waitForFunction(
+    () =>
+      document.getElementById('scene-status').textContent.startsWith('Loaded:'),
+    { timeout: 30000 },
+  );
+  check(
+    'LOAD completes the real visual and camera operation',
+    await page.evaluate(
+      () =>
+        !window.__godsEyeView.sceneDirector.running &&
+        document
+          .getElementById('scene-status')
+          .textContent.includes('<b>QA shot</b>'),
+    ),
+  );
   await page.click('#scene-start-btn');
-  await page.waitForFunction(() => window.__godsEyeView.sceneDirector.running && document.body.classList.contains('scene-playback-mode'));
-  check('Playback enters recording presentation and disables editing', await page.evaluate(() => document.getElementById('scene-capture-btn').disabled && document.getElementById('scene-start-btn').disabled && !document.getElementById('scene-stop-btn').disabled && window.__godsEyeView.styleManager.getViewState().recording));
+  await page.waitForFunction(
+    () =>
+      window.__godsEyeView.sceneDirector.running &&
+      document.body.classList.contains('scene-playback-mode'),
+  );
+  check(
+    'Playback enters recording presentation and disables editing',
+    await page.evaluate(
+      () =>
+        document.getElementById('scene-capture-btn').disabled &&
+        document.getElementById('scene-start-btn').disabled &&
+        !document.getElementById('scene-stop-btn').disabled &&
+        window.__godsEyeView.styleManager.getViewState().recording,
+    ),
+  );
   await page.keyboard.press('Escape');
-  await page.waitForFunction(() => !window.__godsEyeView.sceneDirector.running && !document.body.classList.contains('scene-playback-mode'));
-  check('Escape ends playback and restores idle/recording controls', await page.evaluate(() => !document.getElementById('scene-start-btn').disabled && document.getElementById('scene-stop-btn').disabled && !document.getElementById('scene-download-btn').disabled && !window.__godsEyeView.styleManager.getViewState().recording));
+  await page.waitForFunction(
+    () =>
+      !window.__godsEyeView.sceneDirector.running &&
+      !document.body.classList.contains('scene-playback-mode'),
+  );
+  check(
+    'Escape ends playback and restores idle/recording controls',
+    await page.evaluate(
+      () =>
+        !document.getElementById('scene-start-btn').disabled &&
+        document.getElementById('scene-stop-btn').disabled &&
+        !document.getElementById('scene-download-btn').disabled &&
+        !window.__godsEyeView.styleManager.getViewState().recording,
+    ),
+  );
   await page.click('#scene-download-btn');
-  const metadata = await page.evaluate(async () => JSON.parse(await window.__sceneExports.at(-1)));
-  check('Run download contains the completed cancelled run', Boolean(metadata.endedAt && metadata.wasCancelled && Array.isArray(metadata.events)));
+  const metadata = await page.evaluate(async () =>
+    JSON.parse(await window.__sceneExports.at(-1)),
+  );
+  check(
+    'Run download contains the completed cancelled run',
+    Boolean(
+      metadata.endedAt &&
+      metadata.wasCancelled &&
+      Array.isArray(metadata.events),
+    ),
+  );
   await page.click('#scene-start-btn');
   await page.waitForFunction(() => window.__godsEyeView.sceneDirector.running);
   await page.$eval('#scene-stop-btn', (button) => button.click());
   await page.waitForFunction(() => !window.__godsEyeView.sceneDirector.running);
-  check('The installed Stop control also completes playback cleanup', await page.evaluate(() => !document.body.classList.contains('scene-playback-mode') && !document.getElementById('scene-start-btn').disabled));
+  check(
+    'The installed Stop control also completes playback cleanup',
+    await page.evaluate(
+      () =>
+        !document.body.classList.contains('scene-playback-mode') &&
+        !document.getElementById('scene-start-btn').disabled,
+    ),
+  );
   const badFile = path.join(shots, 'invalid.json');
   fs.writeFileSync(badFile, '{invalid');
   await input.uploadFile(badFile);
-  await page.waitForFunction(() => document.getElementById('scene-status').textContent.includes('invalid JSON'));
-  check('Invalid import reports failure and preserves the current project', await page.evaluate(() => window.__godsEyeView.sceneDirector._project.scenes.length === 1 && window.__godsEyeView.sceneDirector._getSelectedScene().title === 'QA Scene'));
+  await page.waitForFunction(() =>
+    document
+      .getElementById('scene-status')
+      .textContent.includes('invalid JSON'),
+  );
+  check(
+    'Invalid import reports failure and preserves the current project',
+    await page.evaluate(
+      () =>
+        window.__godsEyeView.sceneDirector._project.scenes.length === 1 &&
+        window.__godsEyeView.sceneDirector._getSelectedScene().title ===
+          'QA Scene',
+    ),
+  );
   await page.screenshot({ path: path.join(shots, 'desktop.png') });
   await page.setViewport({ width: 390, height: 844 });
   await page.screenshot({ path: path.join(shots, 'narrow.png') });
-  check('Scene controls stay inside the narrow viewport', await page.$eval('#scene-select', (element) => { const rect = element.getBoundingClientRect(); return rect.width > 0 && rect.left >= 0 && rect.right <= innerWidth; }));
+  check(
+    'Scene controls stay inside the narrow viewport',
+    await page.$eval('#scene-select', (element) => {
+      const rect = element.getBoundingClientRect();
+      return rect.width > 0 && rect.left >= 0 && rect.right <= innerWidth;
+    }),
+  );
   await page.setViewport({ width: 1440, height: 900 });
   await page.click('.scene-shot-danger');
-  await page.waitForFunction(() => !!document.querySelector('.scene-shot-empty'));
-  check('Delete shot leaves the empty-state presentation', await page.evaluate(() => window.__godsEyeView.sceneDirector._getSelectedScene().shots.length === 0));
+  await page.waitForFunction(
+    () => !!document.querySelector('.scene-shot-empty'),
+  );
+  check(
+    'Delete shot leaves the empty-state presentation',
+    await page.evaluate(
+      () =>
+        window.__godsEyeView.sceneDirector._getSelectedScene().shots.length ===
+        0,
+    ),
+  );
   await page.click('#scene-delete-btn');
-  await page.waitForFunction(() => !window.__godsEyeView.sceneDirector._project.scenes.some((item) => item.title === 'QA Scene'));
-  check('Deleting the final scene restores the built-in recipes', await page.evaluate(() => window.__godsEyeView.sceneDirector._project.scenes.length > 0 && document.querySelectorAll('#scene-select option').length > 0));
+  await page.waitForFunction(
+    () =>
+      !window.__godsEyeView.sceneDirector._project.scenes.some(
+        (item) => item.title === 'QA Scene',
+      ),
+  );
+  check(
+    'Deleting the final scene restores the built-in recipes',
+    await page.evaluate(
+      () =>
+        window.__godsEyeView.sceneDirector._project.scenes.length > 0 &&
+        document.querySelectorAll('#scene-select option').length > 0,
+    ),
+  );
   const teardown = await page.evaluate(async () => {
     const director = window.__godsEyeView.sceneDirector;
     const controls = director._controls;
     const previousStatus = document.getElementById('scene-status').textContent;
     const project = director._project;
     let finish;
-    const gate = new Promise((resolve) => { finish = resolve; });
-    const pending = controls.run('import', { name: 'late.json', text: async () => { await gate; return '{"scenes":[]}'; } });
+    const gate = new Promise((resolve) => {
+      finish = resolve;
+    });
+    const pending = controls.run('import', {
+      name: 'late.json',
+      text: async () => {
+        await gate;
+        return '{"scenes":[]}';
+      },
+    });
     const stopping = director.destroy();
-    const stoppedSynchronously = controls.destroyed && controls.removers.length === 0 && controls.rowRemovers.length === 0;
+    const stoppedSynchronously =
+      controls.destroyed &&
+      controls.removers.length === 0 &&
+      controls.rowRemovers.length === 0;
     document.getElementById('scene-new-btn').click();
     controls.run('capture');
     finish();
     await pending;
     await stopping;
     await director.destroy();
-    return { stoppedSynchronously, sameProject: director._project === project, noLateStatus: document.getElementById('scene-status').textContent === previousStatus, rowsGone: !document.querySelector('.scene-shot-row') };
+    return {
+      stoppedSynchronously,
+      sameProject: director._project === project,
+      noLateStatus:
+        document.getElementById('scene-status').textContent === previousStatus,
+      rowsGone: !document.querySelector('.scene-shot-row'),
+    };
   });
-  check('Disposal revokes fixed and row actions before waiting for scene work', teardown.stoppedSynchronously && teardown.rowsGone);
-  check('Late import completion cannot replace the disposed project or status', teardown.sameProject && teardown.noLateStatus);
-  check('Scene control interaction produces no uncaught browser errors', errors.length === 0);
-} finally { await browser.close(); }
+  check(
+    'Disposal revokes fixed and row actions before waiting for scene work',
+    teardown.stoppedSynchronously && teardown.rowsGone,
+  );
+  check(
+    'Late import completion cannot replace the disposed project or status',
+    teardown.sameProject && teardown.noLateStatus,
+  );
+  check(
+    'Scene control interaction produces no uncaught browser errors',
+    errors.length === 0,
+  );
+} finally {
+  await browser.close();
+}
 if (failures) process.exitCode = 1;
diff --git a/src/ui/sceneControls.js b/src/ui/sceneControls.js
index 26e032258..0ce6d61dd 100644
--- a/src/ui/sceneControls.js
+++ b/src/ui/sceneControls.js
@@ -1,5 +1,12 @@
 /** Own Scene panel listeners and presentation through project reads and actions. */
-import { sceneElements, renderSceneOptions, renderSceneShots, presentSceneButtons, presentSceneProgress, presentSceneRuntime } from './scenePresentation.js';
+import {
+  sceneElements,
+  renderSceneOptions,
+  renderSceneShots,
+  presentSceneButtons,
+  presentSceneProgress,
+  presentSceneRuntime,
+} from './scenePresentation.js';
 
 export class SceneControls {
   constructor({ read, actions, elements = sceneElements() }) {
@@ -14,11 +21,23 @@ export class SceneControls {
     if (!elements.select) return;
     this.renderSceneSelect();
     this.renderShotList();
-    this.listen(elements.select, 'change', () => this.run('selectScene', elements.select.value));
-    for (const [element, action] of Object.entries({ new: 'create', delete: 'deleteScene', capture: 'capture', update: 'update', next: 'next', export: 'export', download: 'download' })) {
+    this.listen(elements.select, 'change', () =>
+      this.run('selectScene', elements.select.value),
+    );
+    for (const [element, action] of Object.entries({
+      new: 'create',
+      delete: 'deleteScene',
+      capture: 'capture',
+      update: 'update',
+      next: 'next',
+      export: 'export',
+      download: 'download',
+    })) {
       this.listen(elements[element], 'click', () => this.run(action));
     }
-    this.listen(elements.start, 'click', () => this.run('start', this.read().selectedSceneId));
+    this.listen(elements.start, 'click', () =>
+      this.run('start', this.read().selectedSceneId),
+    );
     this.listen(elements.stop, 'click', () => this.run('stop', 'Stopped'));
     this.listen(elements.import, 'click', () => elements.file?.click());
     this.listen(elements.file, 'change', async () => {
@@ -34,7 +53,9 @@ export class SceneControls {
 
   listen(target, type, callback, removers = this.removers) {
     if (!target) return;
-    const listener = (event) => { if (!this.destroyed) return callback(event); };
+    const listener = (event) => {
+      if (!this.destroyed) return callback(event);
+    };
     target.addEventListener(type, listener);
     removers.push(() => target.removeEventListener(type, listener));
   }
@@ -43,7 +64,8 @@ export class SceneControls {
     if (this.destroyed) return;
     const generation = ++this.actionGeneration;
     const failed = () => {
-      if (!this.destroyed && generation === this.actionGeneration) this.updateStatus('Scene action failed');
+      if (!this.destroyed && generation === this.actionGeneration)
+        this.updateStatus('Scene action failed');
     };
     try {
       const result = this.actions[action](...args);
@@ -61,16 +83,19 @@ export class SceneControls {
     if (this.destroyed) return;
     for (const remove of this.rowRemovers.splice(0)) remove();
     renderSceneShots(this.elements.shots, this.read(), {
-      listen: (element, type, callback) => this.listen(element, type, callback, this.rowRemovers),
+      listen: (element, type, callback) =>
+        this.listen(element, type, callback, this.rowRemovers),
       select: (id) => this.run('selectShot', id),
-      rename: (sceneId, shotId, title) => this.run('renameShot', sceneId, shotId, title),
+      rename: (sceneId, shotId, title) =>
+        this.run('renameShot', sceneId, shotId, title),
       load: (sceneId, shotId) => this.run('load', sceneId, shotId),
       remove: (sceneId, shotId) => this.run('deleteShot', sceneId, shotId),
     });
   }
 
   setButtons(running) {
-    if (!this.destroyed) presentSceneButtons(this.elements, running, this.read().hasRun);
+    if (!this.destroyed)
+      presentSceneButtons(this.elements, running, this.read().hasRun);
   }
 
   setProgress(progress) {
@@ -78,7 +103,8 @@ export class SceneControls {
   }
 
   updateStatus(text) {
-    if (!this.destroyed && this.elements.status) this.elements.status.textContent = text;
+    if (!this.destroyed && this.elements.status)
+      this.elements.status.textContent = text;
   }
 
   updateRuntime(text) {
@@ -96,10 +122,12 @@ export class SceneControls {
       this.playbackKeyRemover = null;
     } else if (!this.destroyed && !this.playbackKeyRemover) {
       const onKeyDown = (event) => {
-        if (!this.destroyed && event.key === 'Escape' && this.read().running) this.run('stop', 'Stopped (Esc)');
+        if (!this.destroyed && event.key === 'Escape' && this.read().running)
+          this.run('stop', 'Stopped (Esc)');
       };
       document.addEventListener('keydown', onKeyDown);
-      this.playbackKeyRemover = () => document.removeEventListener('keydown', onKeyDown);
+      this.playbackKeyRemover = () =>
+        document.removeEventListener('keydown', onKeyDown);
     }
   }
 
@@ -108,7 +136,11 @@ export class SceneControls {
     this.destroyed = true;
     this.actionGeneration++;
     this.setPlaybackKeyboardEnabled(false);
-    for (const remove of [...this.removers.splice(0), ...this.rowRemovers.splice(0)]) remove();
+    for (const remove of [
+      ...this.removers.splice(0),
+      ...this.rowRemovers.splice(0),
+    ])
+      remove();
     if (this.elements.shots) this.elements.shots.textContent = '';
     presentSceneRuntime(this.elements.runtime, '');
     this.setPlaybackActive(false);
diff --git a/src/ui/sceneControls.test.mjs b/src/ui/sceneControls.test.mjs
index 512ffb8a6..34b450f6d 100644
--- a/src/ui/sceneControls.test.mjs
+++ b/src/ui/sceneControls.test.mjs
@@ -12,28 +12,116 @@ function fixture() {
       this._text = '';
       const classes = new Set();
       this.classList = {
-        toggle(name, active) { if (active) classes.add(name); else classes.delete(name); },
+        toggle(name, active) {
+          if (active) classes.add(name);
+          else classes.delete(name);
+        },
         contains: (name) => classes.has(name),
       };
     }
-    appendChild(element) { this.children.push(element); }
-    set textContent(value) { this._text = value; this.children = []; }
-    get textContent() { return this._text + this.children.map((node) => node.textContent).join(''); }
-    click() { this.dispatchEvent(new Event('click')); }
+    appendChild(element) {
+      this.children.push(element);
+    }
+    set textContent(value) {
+      this._text = value;
+      this.children = [];
+    }
+    get textContent() {
+      return (
+        this._text + this.children.map((node) => node.textContent).join('')
+      );
+    }
+    click() {
+      this.dispatchEvent(new Event('click'));
+    }
   }
   const saved = { document: globalThis.document, window: globalThis.window };
-  const document = Object.assign(new EventTarget(), { createElement: () => new Element(), body: new Element() });
+  const document = Object.assign(new EventTarget(), {
+    createElement: () => new Element(),
+    body: new Element(),
+  });
   globalThis.document = document;
   globalThis.window = { prompt: () => 'Renamed' };
-  const elements = Object.fromEntries(['panel','select','new','delete','capture','update','shots','start','stop','next','export','import','file','download','status','progress','runtime'].map((name) => [name, new Element()]));
+  const elements = Object.fromEntries(
+    [
+      'panel',
+      'select',
+      'new',
+      'delete',
+      'capture',
+      'update',
+      'shots',
+      'start',
+      'stop',
+      'next',
+      'export',
+      'import',
+      'file',
+      'download',
+      'status',
+      'progress',
+      'runtime',
+    ].map((name) => [name, new Element()]),
+  );
   const state = {
-    scenes: [{ id: 'scene-a', title: '<Scene A>', shots: [{ id: 'shot-a', title: '<Shot A>', durationSec: 4, holdSec: 0.9, visual: { style: 'normal' } }] }],
-    selectedSceneId: 'scene-a', selectedShotId: 'shot-a', running: false, hasRun: false,
+    scenes: [
+      {
+        id: 'scene-a',
+        title: '<Scene A>',
+        shots: [
+          {
+            id: 'shot-a',
+            title: '<Shot A>',
+            durationSec: 4,
+            holdSec: 0.9,
+            visual: { style: 'normal' },
+          },
+        ],
+      },
+    ],
+    selectedSceneId: 'scene-a',
+    selectedShotId: 'shot-a',
+    running: false,
+    hasRun: false,
   };
   const calls = [];
-  const actions = Object.fromEntries(['selectScene','selectShot','renameShot','create','deleteScene','capture','update','start','stop','next','export','import','download','load','deleteShot'].map((name) => [name, (...args) => { calls.push([name, ...args]); }]));
+  const actions = Object.fromEntries(
+    [
+      'selectScene',
+      'selectShot',
+      'renameShot',
+      'create',
+      'deleteScene',
+      'capture',
+      'update',
+      'start',
+      'stop',
+      'next',
+      'export',
+      'import',
+      'download',
+      'load',
+      'deleteShot',
+    ].map((name) => [
+      name,
+      (...args) => {
+        calls.push([name, ...args]);
+      },
+    ]),
+  );
   const owner = new SceneControls({ read: () => state, actions, elements });
-  return { owner, state, actions, elements, calls, document, restore() { owner.destroy(); Object.assign(globalThis, saved); } };
+  return {
+    owner,
+    state,
+    actions,
+    elements,
+    calls,
+    document,
+    restore() {
+      owner.destroy();
+      Object.assign(globalThis, saved);
+    },
+  };
 }
 
 test('Scene controls render the supplied selection and running/download states', () => {
@@ -41,7 +129,10 @@ test('Scene controls render the supplied selection and running/download states',
   try {
     assert.equal(f.elements.select.children[0].textContent, '<Scene A>');
     assert.equal(f.elements.select.value, 'scene-a');
-    assert.equal(f.elements.shots.children[0].children[0].children[0].textContent, '<Shot A>');
+    assert.equal(
+      f.elements.shots.children[0].children[0].children[0].textContent,
+      '<Shot A>',
+    );
     assert.equal(f.elements.stop.disabled, true);
     assert.equal(f.elements.download.disabled, true);
     f.state.hasRun = true;
@@ -55,7 +146,9 @@ test('Scene controls render the supplied selection and running/download states',
     assert.equal(f.elements.progress.style.width, '100%');
     f.owner.setProgress(-1);
     assert.equal(f.elements.progress.textContent, '0%');
-  } finally { f.restore(); }
+  } finally {
+    f.restore();
+  }
 });
 
 test('Scene controls dispatch explicit actions and revoke replaced shot-row listeners', () => {
@@ -69,19 +162,30 @@ test('Scene controls dispatch explicit actions and revoke replaced shot-row list
     label.click();
     label.dispatchEvent(new Event('dblclick'));
     load.click();
-    assert.deepEqual(f.calls, [['capture'], ['start','scene-a'], ['selectShot','shot-a'], ['renameShot','scene-a','shot-a','Renamed'], ['load','scene-a','shot-a']]);
+    assert.deepEqual(f.calls, [
+      ['capture'],
+      ['start', 'scene-a'],
+      ['selectShot', 'shot-a'],
+      ['renameShot', 'scene-a', 'shot-a', 'Renamed'],
+      ['load', 'scene-a', 'shot-a'],
+    ]);
     f.owner.renderShotList();
     label.click();
     load.click();
     assert.equal(f.calls.length, 5);
     f.elements.shots.children[0].children[0].children[1].children[0].click();
     assert.equal(f.calls.length, 6);
-  } finally { f.restore(); }
+  } finally {
+    f.restore();
+  }
 });
 
 test('Scene Escape and recording presentation follow playback and release on destruction', () => {
   const f = fixture();
-  const escape = () => f.document.dispatchEvent(Object.assign(new Event('keydown'), { key: 'Escape' }));
+  const escape = () =>
+    f.document.dispatchEvent(
+      Object.assign(new Event('keydown'), { key: 'Escape' }),
+    );
   try {
     escape();
     assert.deepEqual(f.calls, []);
@@ -98,18 +202,26 @@ test('Scene Escape and recording presentation follow playback and release on des
     f.elements.capture.click();
     f.owner.run('capture');
     assert.equal(f.calls.length, 1);
-    assert.equal(f.document.body.classList.contains('scene-playback-mode'), false);
+    assert.equal(
+      f.document.body.classList.contains('scene-playback-mode'),
+      false,
+    );
     assert.equal(f.elements.runtime.textContent, '');
     assert.equal(f.owner.removers.length, 0);
     assert.equal(f.owner.rowRemovers.length, 0);
-  } finally { f.restore(); }
+  } finally {
+    f.restore();
+  }
 });
 
 test('a file import finishing after disposal cannot clear the retained file control', async () => {
   const f = fixture();
   try {
     let finish;
-    f.actions.import = () => new Promise((resolve) => { finish = resolve; });
+    f.actions.import = () =>
+      new Promise((resolve) => {
+        finish = resolve;
+      });
     f.elements.file.files = [{ name: 'project.json' }];
     f.elements.file.value = 'project.json';
     f.elements.file.dispatchEvent(new Event('change'));
@@ -118,14 +230,19 @@ test('a file import finishing after disposal cannot clear the retained file cont
     await new Promise((resolve) => setImmediate(resolve));
     assert.equal(f.elements.file.value, 'project.json');
     assert.equal(f.elements.status.textContent, 'Ready');
-  } finally { f.restore(); }
+  } finally {
+    f.restore();
+  }
 });
 
 test('Scene action failures are visible only while that action still owns presentation', async () => {
   const f = fixture();
   try {
     let reject;
-    f.actions.load = () => new Promise((_resolve, fail) => { reject = fail; });
+    f.actions.load = () =>
+      new Promise((_resolve, fail) => {
+        reject = fail;
+      });
     let pending = f.owner.run('load', 'scene-a', 'shot-a');
     reject(new Error('unavailable'));
     await pending;
@@ -141,5 +258,7 @@ test('Scene action failures are visible only while that action still owns presen
     reject(new Error('disposed'));
     await pending;
     assert.equal(f.elements.status.textContent, 'Current selection');
-  } finally { f.restore(); }
+  } finally {
+    f.restore();
+  }
 });
diff --git a/src/ui/scenePresentation.js b/src/ui/scenePresentation.js
index a4a449a08..d0c0530be 100644
--- a/src/ui/scenePresentation.js
+++ b/src/ui/scenePresentation.js
@@ -1,14 +1,27 @@
 /** Scene panel elements and text-only project presentation. */
 export function sceneElements(root = document) {
   const ids = {
-    panel: 'scene-panel', select: 'scene-select', new: 'scene-new-btn',
-    delete: 'scene-delete-btn', capture: 'scene-capture-btn', update: 'scene-update-shot-btn',
-    shots: 'scene-shot-list', start: 'scene-start-btn', stop: 'scene-stop-btn',
-    next: 'scene-next-btn', export: 'scene-export-btn', import: 'scene-import-btn',
-    file: 'scene-import-file', download: 'scene-download-btn', status: 'scene-status',
-    progress: 'scene-progress-fill', runtime: 'scene-runtime',
+    panel: 'scene-panel',
+    select: 'scene-select',
+    new: 'scene-new-btn',
+    delete: 'scene-delete-btn',
+    capture: 'scene-capture-btn',
+    update: 'scene-update-shot-btn',
+    shots: 'scene-shot-list',
+    start: 'scene-start-btn',
+    stop: 'scene-stop-btn',
+    next: 'scene-next-btn',
+    export: 'scene-export-btn',
+    import: 'scene-import-btn',
+    file: 'scene-import-file',
+    download: 'scene-download-btn',
+    status: 'scene-status',
+    progress: 'scene-progress-fill',
+    runtime: 'scene-runtime',
   };
-  return Object.fromEntries(Object.entries(ids).map(([name, id]) => [name, root.getElementById(id)]));
+  return Object.fromEntries(
+    Object.entries(ids).map(([name, id]) => [name, root.getElementById(id)]),
+  );
 }
 
 export function renderSceneOptions(element, { scenes, selectedSceneId }) {
@@ -23,7 +36,11 @@ export function renderSceneOptions(element, { scenes, selectedSceneId }) {
   if (selectedSceneId) element.value = selectedSceneId;
 }
 
-export function renderSceneShots(element, state, { listen, select, rename, load, remove }) {
+export function renderSceneShots(
+  element,
+  state,
+  { listen, select, rename, load, remove },
+) {
   if (!element) return;
   const scene = state.scenes.find((item) => item.id === state.selectedSceneId);
   element.textContent = '';
@@ -74,7 +91,17 @@ export function renderSceneShots(element, state, { listen, select, rename, load,
 }
 
 export function presentSceneButtons(elements, running, hasRun) {
-  for (const name of ['start', 'next', 'select', 'new', 'delete', 'capture', 'update', 'export', 'import']) {
+  for (const name of [
+    'start',
+    'next',
+    'select',
+    'new',
+    'delete',
+    'capture',
+    'update',
+    'export',
+    'import',
+  ]) {
     if (elements[name]) elements[name].disabled = running;
   }
   if (elements.stop) elements.stop.disabled = !running;