diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index ad502388ff..9b048858e3 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -92,7 +92,7 @@ static const NWidgetPart _nested_build_vehicle_widgets[] = {
 static const NWidgetPart _nested_build_vehicle_widgets_train_advanced[] = {
 	NWidget(NWID_HORIZONTAL),
 		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
-		NWidget(WWT_CAPTION, COLOUR_GREY, WID_BV_CAPTION), SetDataTip(STR_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
+		NWidget(WWT_CAPTION, COLOUR_GREY, WID_BV_CAPTION), SetDataTip(STR_BUY_VEHICLE_ADV_WINDOW_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
 		NWidget(WWT_SHADEBOX, COLOUR_GREY),
 		NWidget(WWT_DEFSIZEBOX, COLOUR_GREY),
 		NWidget(WWT_STICKYBOX, COLOUR_GREY),
@@ -2743,7 +2743,7 @@ void ShowBuildVehicleWindow(const TileIndex tile, const VehicleType type)
 
 	DeleteWindowById(WC_BUILD_VEHICLE, num);
 
-	if (type == VEH_TRAIN && _settings_client.gui.dual_pane_train_purchase_window) {
+	if (type == VEH_TRAIN && _settings_client.gui.experimental_dual_pane_train_purchase_window) {
 		new BuildVehicleWindowTrainAdvanced(&_build_vehicle_desc_train_advanced, tile, nullptr);
 	} else {
 		new BuildVehicleWindow(&_build_vehicle_desc, tile, type, nullptr);
@@ -2756,7 +2756,7 @@ void ShowTemplateTrainBuildVehicleWindow(Train **virtual_train)
 
 	DeleteWindowById(WC_BUILD_VIRTUAL_TRAIN, 0);
 
-	if (_settings_client.gui.dual_pane_train_purchase_window) {
+	if (_settings_client.gui.experimental_dual_pane_train_purchase_window) {
 		new BuildVehicleWindowTrainAdvanced(&_build_template_vehicle_desc_advanced, INVALID_TILE, virtual_train);
 	} else {
 		new BuildVehicleWindow(&_build_template_vehicle_desc, INVALID_TILE, VEH_TRAIN, virtual_train);
diff --git a/src/lang/english.txt b/src/lang/english.txt
index 416621def3..80834dfceb 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -1480,7 +1480,7 @@ STR_CONFIG_SETTING_DEMOLISH_CONFIRM_MODE_OFF                    :Off
 STR_CONFIG_SETTING_DEMOLISH_CONFIRM_MODE_INDUSTRY               :Industries
 STR_CONFIG_SETTING_DEMOLISH_CONFIRM_MODE_ALL                    :Industries and rail stations
 
-STR_CONFIG_SETTING_DUAL_PANE_TRAIN_PURCHASE_WINDOW              :Separate locomotives and wagons in train purchase window: {STRING2}
+STR_CONFIG_SETTING_DUAL_PANE_TRAIN_PURCHASE_WINDOW              :Experimental - Separate locomotives and wagons in train purchase window: {STRING2}
 STR_CONFIG_SETTING_DUAL_PANE_TRAIN_PURCHASE_WINDOW_HELPTEXT     :When enabled, the train purchase window shows locomotives and wagons in separate side-by-side lists.
 
 STR_CONFIG_SETTING_ADV_SIG_BRIDGE_TUN_MODES                     :Enable signals on bridges/tunnels advanced modes: {STRING2}
@@ -4678,6 +4678,8 @@ STR_BUY_VEHICLE_ROAD_VEHICLE_HIDE_SHOW_TOGGLE_TOOLTIP           :{BLACK}Toggle h
 STR_BUY_VEHICLE_SHIP_HIDE_SHOW_TOGGLE_TOOLTIP                   :{BLACK}Toggle hiding/displaying of the ship type
 STR_BUY_VEHICLE_AIRCRAFT_HIDE_SHOW_TOGGLE_TOOLTIP               :{BLACK}Toggle hiding/displaying of the aircraft type
 
+STR_BUY_VEHICLE_ADV_WINDOW_CAPTION                              :{WHITE}{STRING} (Experimental)
+
 STR_QUERY_RENAME_TRAIN_TYPE_CAPTION                             :{WHITE}Rename train vehicle type
 STR_QUERY_RENAME_ROAD_VEHICLE_TYPE_CAPTION                      :{WHITE}Rename road vehicle type
 STR_QUERY_RENAME_SHIP_TYPE_CAPTION                              :{WHITE}Rename ship type
diff --git a/src/settings_gui.cpp b/src/settings_gui.cpp
index 6a98b06080..e474bfc97b 100644
--- a/src/settings_gui.cpp
+++ b/src/settings_gui.cpp
@@ -1842,7 +1842,7 @@ static SettingsContainer &GetSettingsTree()
 			interface->Add(new SettingEntry("gui.open_vehicle_gui_clone_share"));
 			interface->Add(new SettingEntry("gui.vehicle_names"));
 			interface->Add(new SettingEntry("gui.station_rating_tooltip_mode"));
-			interface->Add(new SettingEntry("gui.dual_pane_train_purchase_window"));
+			interface->Add(new SettingEntry("gui.experimental_dual_pane_train_purchase_window"));
 		}
 
 		SettingsPage *advisors = main->Add(new SettingsPage(STR_CONFIG_SETTING_ADVISORS));
diff --git a/src/settings_type.h b/src/settings_type.h
index de2c002c39..3eee52fd9d 100644
--- a/src/settings_type.h
+++ b/src/settings_type.h
@@ -223,7 +223,7 @@ struct GUISettings : public TimeSettings {
 	bool   shade_trees_on_slopes;            ///< Shade trees on slopes
 	uint8  station_rating_tooltip_mode;      ///< Station rating tooltip mode
 	uint8  demolish_confirm_mode;            ///< Demolition confirmation mode
-	bool   dual_pane_train_purchase_window;  ///< Dual pane train purchase window
+	bool   experimental_dual_pane_train_purchase_window;  ///< Dual pane train purchase window
 
 	uint16 console_backlog_timeout;          ///< the minimum amount of time items should be in the console backlog before they will be removed in ~3 seconds granularity.
 	uint16 console_backlog_length;           ///< the minimum amount of items in the console backlog before items will be removed.
diff --git a/src/table/settings.ini b/src/table/settings.ini
index 790e3952c4..63cca6a9ab 100644
--- a/src/table/settings.ini
+++ b/src/table/settings.ini
@@ -5550,11 +5550,12 @@ strval   = STR_CONFIG_SETTING_DEMOLISH_CONFIRM_MODE_OFF
 cat      = SC_BASIC
 
 [SDTC_BOOL]
-var      = gui.dual_pane_train_purchase_window
+var      = gui.experimental_dual_pane_train_purchase_window
 flags    = SLF_NOT_IN_SAVE | SLF_NO_NETWORK_SYNC
-def      = true
+def      = false
 str      = STR_CONFIG_SETTING_DUAL_PANE_TRAIN_PURCHASE_WINDOW
 strhelp  = STR_CONFIG_SETTING_DUAL_PANE_TRAIN_PURCHASE_WINDOW_HELPTEXT
+cat      = SC_EXPERT
 
 ; For the dedicated build we'll enable dates in logs by default.
 [SDTC_BOOL]