[Editor] Add editor setting to globally override project game mode settings.

doc/classes/EditorSettings.xml

@@ -1136,6 +1136,9 @@
 			- [b]Launch in PiP mode[/b] will launch the Play window directly in picture-in-picture (PiP) mode if PiP mode is supported and enabled. When maximized, the Play window will occupy the same window as the Editor.
 			[b]Note:[/b] Only available in the Android editor.
 		</member>
+		<member name="run/window_placement/game_embed_mode" type="int" setter="" getter="">
+			Overrides game embedding setting for all newly opened projects. If enabled, game embedding settings are not saved.
+		</member>
 		<member name="run/window_placement/play_window_pip_mode" type="int" setter="" getter="">
 			Specifies the picture-in-picture (PiP) mode for the Play window.
 			- [b]Disabled:[/b] PiP is disabled for the Play window.

editor/editor_settings.cpp

@@ -940,6 +940,8 @@ void EditorSettings::_load_defaults(Ref<ConfigFile> p_extra_config) {
 	String android_window_hints = "Auto (based on screen size):0,Same as Editor:1,Side-by-side with Editor:2,Launch in PiP mode:3";
 	EDITOR_SETTING_BASIC(Variant::INT, PROPERTY_HINT_ENUM, "run/window_placement/android_window", 0, android_window_hints)
 
+	EDITOR_SETTING_BASIC(Variant::INT, PROPERTY_HINT_ENUM, "run/window_placement/game_embed_mode", 0, "Use Per-Project Configuration:0,Embed Game:1,Make Game Workspace Floating:2,Disabled:3");
+
 	int default_play_window_pip_mode = 0;
 #ifdef ANDROID_ENABLED
 	default_play_window_pip_mode = 2;

editor/plugins/game_view_plugin.cpp

@@ -401,11 +401,17 @@ void GameView::_embed_options_menu_menu_id_pressed(int p_id) {
 	switch (p_id) {
 		case EMBED_RUN_GAME_EMBEDDED: {
 			embed_on_play = !embed_on_play;
-			EditorSettings::get_singleton()->set_project_metadata("game_view", "embed_on_play", embed_on_play);
+			int game_mode = EDITOR_GET("run/window_placement/game_embed_mode");
+			if (game_mode == 0) { // Save only if not overridden by editor.
+				EditorSettings::get_singleton()->set_project_metadata("game_view", "embed_on_play", embed_on_play);
+			}
 		} break;
 		case EMBED_MAKE_FLOATING_ON_PLAY: {
 			make_floating_on_play = !make_floating_on_play;
-			EditorSettings::get_singleton()->set_project_metadata("game_view", "make_floating_on_play", make_floating_on_play);
+			int game_mode = EDITOR_GET("run/window_placement/game_embed_mode");
+			if (game_mode == 0) { // Save only if not overridden by editor.
+				EditorSettings::get_singleton()->set_project_metadata("game_view", "make_floating_on_play", make_floating_on_play);
+			}
 		} break;
 	}
 	_update_embed_menu_options();
@@ -585,9 +591,27 @@ void GameView::_notification(int p_what) {
 		case NOTIFICATION_READY: {
 			if (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_WINDOW_EMBEDDING)) {
 				// Embedding available.
-				embed_on_play = EditorSettings::get_singleton()->get_project_metadata("game_view", "embed_on_play", true);
-				make_floating_on_play = EditorSettings::get_singleton()->get_project_metadata("game_view", "make_floating_on_play", true);
+				int game_mode = EDITOR_GET("run/window_placement/game_embed_mode");
+				switch (game_mode) {
+					case 1: { // Embed.
+						embed_on_play = true;
+						make_floating_on_play = false;
+					} break;
+					case 2: { // Floating.
+						embed_on_play = true;
+						make_floating_on_play = true;
+					} break;
+					case 3: { // Disabled.
+						embed_on_play = false;
+						make_floating_on_play = false;
+					} break;
+					default: {
+						embed_on_play = EditorSettings::get_singleton()->get_project_metadata("game_view", "embed_on_play", true);
+						make_floating_on_play = EditorSettings::get_singleton()->get_project_metadata("game_view", "make_floating_on_play", true);
+					} break;
+				}
 				embed_size_mode = (EmbedSizeMode)(int)EditorSettings::get_singleton()->get_project_metadata("game_view", "embed_size_mode", SIZE_MODE_FIXED);
+				keep_aspect_button->set_pressed(EditorSettings::get_singleton()->get_project_metadata("game_view", "keep_aspect", true));
 				_update_embed_menu_options();
 
 				EditorRunBar::get_singleton()->connect("play_pressed", callable_mp(this, &GameView::_play_pressed));