diff --git a/src/lib/ae_events/ae_events__event_file.ts b/src/lib/ae_events/ae_events__event_file.ts
index 28cc6919..1650c694 100644
--- a/src/lib/ae_events/ae_events__event_file.ts
+++ b/src/lib/ae_events/ae_events__event_file.ts
@@ -539,6 +539,7 @@ export const properties_to_save = [
     'filename',
     'extension',
     'open_in_os',
+    'cfg_json',
     'lu_file_purpose_id',
     'lu_event_file_purpose_name',
     'file_purpose',
diff --git a/src/routes/events/[event_id]/(launcher)/launcher_file_cont.svelte b/src/routes/events/[event_id]/(launcher)/launcher_file_cont.svelte
index e1fe40db..05f1a1e4 100644
--- a/src/routes/events/[event_id]/(launcher)/launcher_file_cont.svelte
+++ b/src/routes/events/[event_id]/(launcher)/launcher_file_cont.svelte
@@ -136,8 +136,22 @@ function get_launch_profile(
         null;
     const local_profiles = ($events_loc as any).launcher?.launch_profiles ?? null;
     const display_override = file_obj?.cfg_json?.display_override ?? null;
+
+    // open_in_os = 'win' routes to the Windows-variant profile for apps that have one.
+    // These profiles target Windows PowerPoint / LibreOffice / Acrobat running via Parallels or CrossOver.
+    const WIN_EXTENSION_MAP: Record<string, string> = {
+        pptx: 'pptxwin',
+        ppt: 'pptwin',
+        odp: 'odpwin',
+        pdf: 'pdfwin'
+    };
+    const effective_extension =
+        file_obj?.open_in_os === 'win'
+            ? (WIN_EXTENSION_MAP[extension] ?? extension)
+            : extension;
+
     return resolve_launch_profile(
-        extension,
+        effective_extension,
         display_override,
         device_profiles,
         local_profiles
@@ -714,10 +728,11 @@ function prevent_default<T extends Event>(fn: (event: T) => void) {
                 {/if}
         </button>
 
-        {#if $ae_loc.trusted_access && $ae_loc.is_native}
+        {#if $ae_loc.trusted_access}
             <!-- Display override: per-file display_mode override for this file only.
                  null = use profile default, 'extend' = force extend, 'mirror' = force mirror.
-                 Stored in event_file.cfg_json.display_override. Cycles null → extend → mirror → null. -->
+                 Stored in event_file.cfg_json.display_override. Cycles null → extend → mirror → null.
+                 Settable from any device — takes effect when the file is opened in native mode. -->
             <button
                 type="button"
                 onclick={async () => {
diff --git a/src/routes/events/[event_id]/(launcher)/menu_launcher_controls.svelte b/src/routes/events/[event_id]/(launcher)/menu_launcher_controls.svelte
index 36074297..0093d84e 100644
--- a/src/routes/events/[event_id]/(launcher)/menu_launcher_controls.svelte
+++ b/src/routes/events/[event_id]/(launcher)/menu_launcher_controls.svelte
@@ -30,7 +30,10 @@ interface Props {
 
 let { log_lvl = $bindable(0) }: Props = $props();
 
-let quick_display_mode = $state<'extend' | 'mirror'>('extend');
+// Persist display mode across reloads — reflects the last-set state, not hardware-queried state.
+let quick_display_mode = $state<'extend' | 'mirror'>(
+    ($events_loc.launcher as any)?.display_mode ?? 'extend'
+);
 
 const is_native_launcher_mode = $derived(
     !!$ae_loc.is_native && $events_loc.launcher.app_mode === 'native'
@@ -40,9 +43,13 @@ async function toggle_display_mode() {
     const next = quick_display_mode === 'extend' ? 'mirror' : 'extend';
     if (is_native_launcher_mode) {
         const res = await native.set_display_layout({ mode: next });
-        if (res?.success) quick_display_mode = next;
+        if (res?.success) {
+            quick_display_mode = next;
+            ($events_loc.launcher as any).display_mode = next;
+        }
     } else {
         quick_display_mode = next;
+        ($events_loc.launcher as any).display_mode = next;
     }
 }
 </script>