diff --git a/apps/web/e2e/settings-nav.spec.ts b/apps/web/e2e/settings-nav.spec.ts
index 87accf8..aebfdaf 100644
--- a/apps/web/e2e/settings-nav.spec.ts
+++ b/apps/web/e2e/settings-nav.spec.ts
@@ -28,7 +28,8 @@ test('user settings show the jump nav and clicking scrolls + activates', async (
   await expect(nav).toBeVisible();
   const links = nav.locator('.settings-nav__link');
   // Profile, password, sessions, watches, API tokens, feed tokens, data export.
-  await expect(links).toHaveCount(7);
+  // 8 seit #170 (neue Bedienungs-Sektion).
+  await expect(links).toHaveCount(8);
 
   // Jump to the last section: it scrolls into view and becomes active.
   const last = links.last();
diff --git a/apps/web/src/components/Toast.tsx b/apps/web/src/components/Toast.tsx
index 64d5983..c24e1eb 100644
--- a/apps/web/src/components/Toast.tsx
+++ b/apps/web/src/components/Toast.tsx
@@ -18,7 +18,9 @@ interface ToastItem {
   variant: ToastVariant;
 }
 
-const TOAST_DURATION_MS = 2500;
+// 6 s statt 2,5 s (issue #170, WCAG 2.2.1): kurzlebige Statusmeldungen
+// waren für Screenreader-/Vergrößerungs-Nutzer kaum erfassbar.
+const TOAST_DURATION_MS = 6000;
 
 const ToastContext = createContext<ShowToast>(() => {});
 
diff --git a/apps/web/src/graph/ForceGraph.tsx b/apps/web/src/graph/ForceGraph.tsx
index 925eaa2..c70c73f 100644
--- a/apps/web/src/graph/ForceGraph.tsx
+++ b/apps/web/src/graph/ForceGraph.tsx
@@ -156,8 +156,18 @@ export function ForceGraph({
       // Settle noticeably faster than d3's default so e2e clicks and the
       // reading eye get a resting layout within a couple of seconds.
       .alphaDecay(0.04)
-      .alpha(previous.size > 0 ? 0.5 : 1)
-      .on('tick', applyPositions);
+      .alpha(previous.size > 0 ? 0.5 : 1);
+    // prefers-reduced-motion (issue #170, WCAG 2.2.2): das Layout wird
+    // synchron zu Ende gerechnet und einmal gemalt statt zu animieren.
+    if (window.matchMedia('(prefers-reduced-motion: reduce)').matches) {
+      simulation.stop();
+      simulation.tick(200);
+      // applyPositions läuft nach dem Mount der SVG-Knoten (unten im
+      // Layout-Effekt ohnehin einmal aufgerufen über den ersten Paint).
+      requestAnimationFrame(applyPositions);
+    } else {
+      simulation.on('tick', applyPositions);
+    }
     simRef.current = simulation;
     simNodesRef.current = new Map(simNodes.map((n) => [n.id, n]));
     return () => {
diff --git a/apps/web/src/layout/TopBar.tsx b/apps/web/src/layout/TopBar.tsx
index 577d42f..de45722 100644
--- a/apps/web/src/layout/TopBar.tsx
+++ b/apps/web/src/layout/TopBar.tsx
@@ -15,6 +15,7 @@ import { usePageActionsSlot } from './page-actions';
 import { PondSwitcher } from './PondSwitcher';
 import { useCurrentPondRoute } from './use-pond-route';
 
+import { singleKeyShortcutsDisabled } from '../lib/single-key-shortcuts';
 interface TopBarProps {
   sidebarCollapsed: boolean;
   onToggleSidebar: () => void;
@@ -49,7 +50,12 @@ export function TopBar({ sidebarCollapsed, onToggleSidebar }: TopBarProps): Reac
   useEffect(() => {
     if (!user) return undefined;
     const onKeyDown = (event: KeyboardEvent): void => {
-      if (event.key === '/' && !isTypingTarget(event.target) && !searchOpen) {
+      if (
+        event.key === '/' &&
+        !isTypingTarget(event.target) &&
+        !searchOpen &&
+        !singleKeyShortcutsDisabled()
+      ) {
         event.preventDefault();
         setSearchOpen(true);
       }
diff --git a/apps/web/src/lib/single-key-shortcuts.ts b/apps/web/src/lib/single-key-shortcuts.ts
new file mode 100644
index 0000000..2c6895a
--- /dev/null
+++ b/apps/web/src/lib/single-key-shortcuts.ts
@@ -0,0 +1,13 @@
+/** localStorage key for the "disable single-key shortcuts" preference
+ * (issue #170, WCAG 2.1.4): `e` (edit mode) and `/` (search) can misfire
+ * for speech-input users, so they must be switch-offable. */
+export const SINGLE_KEY_SHORTCUTS_KEY = 'ui.singleKeyShortcuts.disabled';
+
+/** Read at keypress time so the toggle needs no cross-component state. */
+export function singleKeyShortcutsDisabled(): boolean {
+  try {
+    return window.localStorage.getItem(SINGLE_KEY_SHORTCUTS_KEY) === 'true';
+  } catch {
+    return false;
+  }
+}
diff --git a/apps/web/src/pages/PageEditorPage.tsx b/apps/web/src/pages/PageEditorPage.tsx
index 955b9f1..85fde37 100644
--- a/apps/web/src/pages/PageEditorPage.tsx
+++ b/apps/web/src/pages/PageEditorPage.tsx
@@ -42,6 +42,7 @@ import { PluginBlockContext } from '../editor/plugin-block-context';
 import { hasPageTools, PageToolsPanel } from '../plugins/PageToolsPanel';
 import { SectionStyleSheets } from '../plugins/SectionStyleSheets';
 import { useDocumentTitle } from '../lib/use-document-title';
+import { singleKeyShortcutsDisabled } from '../lib/single-key-shortcuts';
 import {
   pluginBlockOptions,
   sectionStyleOptions,
@@ -461,7 +462,8 @@ export function PageEditorPage(): React.JSX.Element {
           !event.ctrlKey &&
           !event.metaKey &&
           !event.altKey &&
-          !isTypingTarget(event.target)
+          !isTypingTarget(event.target) &&
+          !singleKeyShortcutsDisabled()
         ) {
           event.preventDefault();
           setMode('edit');
diff --git a/apps/web/src/pages/SettingsPage.tsx b/apps/web/src/pages/SettingsPage.tsx
index d844019..2f92ff9 100644
--- a/apps/web/src/pages/SettingsPage.tsx
+++ b/apps/web/src/pages/SettingsPage.tsx
@@ -15,6 +15,8 @@ import { FeedTokensSection } from '../api-tokens/FeedTokensSection';
 import { WatchesSection } from '../watches/WatchesSection';
 
 import { useDocumentTitle } from '../lib/use-document-title';
+import { SINGLE_KEY_SHORTCUTS_KEY } from '../lib/single-key-shortcuts';
+import { usePersistentState } from '../lib/use-persistent-state';
 interface SessionView {
   id: string;
   createdAt: string;
@@ -36,12 +38,34 @@ export function SettingsPage(): React.JSX.Element {
         <WatchesSection />
         <ApiTokensSection />
         <FeedTokensSection />
+        <InteractionSection />
         <DataExportSection />
       </SettingsLayout>
     </>
   );
 }
 
+/** Bedienungs-Einstellungen (issue #170, WCAG 2.1.4): Einzeltasten-Kürzel
+ * abschaltbar machen — lokale Geräte-Einstellung, kein Server-Zustand. */
+function InteractionSection(): React.JSX.Element {
+  const { t } = useTranslation();
+  const [disabled, setDisabled] = usePersistentState(SINGLE_KEY_SHORTCUTS_KEY, false);
+  return (
+    <section className="settings-section">
+      <h2>{t('settings:interaction.title')}</h2>
+      <label className="settings-checkbox">
+        <input
+          type="checkbox"
+          checked={disabled}
+          onChange={(event) => setDisabled(event.target.checked)}
+        />
+        {t('settings:interaction.disableSingleKey')}
+      </label>
+      <p className="field__hint">{t('settings:interaction.disableSingleKeyHint')}</p>
+    </section>
+  );
+}
+
 function DataExportSection(): React.JSX.Element {
   const { t, i18n } = useTranslation();
   const { status, expiresAt, request, download } = useDataExport();
diff --git a/apps/web/src/styles/base.css b/apps/web/src/styles/base.css
index fbfad2d..30456f2 100644
--- a/apps/web/src/styles/base.css
+++ b/apps/web/src/styles/base.css
@@ -97,6 +97,17 @@ button {
   flex: 1;
 }
 
+/* Reduced motion (#170): collapse the few CSS transitions to instant. */
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    transition-duration: 0.01ms !important;
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+  }
+}
+
 /* Skip link (#166, WCAG 2.4.1): first tab stop, visible only on focus. */
 .skip-link {
   position: absolute;
diff --git a/packages/shared/i18n/de/settings.json b/packages/shared/i18n/de/settings.json
index a3177a9..bc06e69 100644
--- a/packages/shared/i18n/de/settings.json
+++ b/packages/shared/i18n/de/settings.json
@@ -56,5 +56,10 @@
     "label": "Startseiten-Inhalt (Markdown)",
     "save": "Startseite speichern",
     "saved": "Gespeichert."
+  },
+  "interaction": {
+    "title": "Bedienung",
+    "disableSingleKey": "Einzeltasten-Kürzel deaktivieren",
+    "disableSingleKeyHint": "Schaltet die Kürzel „e“ (Bearbeiten) und „/“ (Suche) ab — hilfreich bei Spracheingabe. Gilt für dieses Gerät."
   }
 }
diff --git a/packages/shared/i18n/en/settings.json b/packages/shared/i18n/en/settings.json
index 6f0db76..9d208dc 100644
--- a/packages/shared/i18n/en/settings.json
+++ b/packages/shared/i18n/en/settings.json
@@ -56,5 +56,10 @@
     "label": "Landing page content (Markdown)",
     "save": "Save landing page",
     "saved": "Saved."
+  },
+  "interaction": {
+    "title": "Interaction",
+    "disableSingleKey": "Disable single-key shortcuts",
+    "disableSingleKeyHint": "Turns off the “e” (edit) and “/” (search) shortcuts — helpful with speech input. Applies to this device."
   }
 }