can quit menus using B button

addons/maaacks_game_template/base/scenes/menus/main_menu/main_menu.gd

@@ -6,6 +6,9 @@ extends Control
 @export var options_packed_scene : PackedScene
 @export var credits_packed_scene : PackedScene
 
+@export var menu_context : GUIDEMappingContext
+@export var back_action : GUIDEAction
+
 var options_scene
 var credits_scene
 var sub_menu
@@ -73,7 +76,12 @@ func _ready() -> void:
 	_add_or_hide_options()
 	_add_or_hide_credits()
 	_hide_new_game_if_unset()
-
+	_setup_inputs()
+	
+func _setup_inputs() -> void:
+	GUIDE.enable_mapping_context(menu_context)
+	back_action.triggered.connect(_on_back_button_pressed)
+	
 func _on_new_game_button_pressed() -> void:
 	new_game()