@tool extends EditorPlugin var button: Button = preload("res://addons/besseretests/scenesrc/editorbutton.tscn").instantiate() func _enter_tree(): add_control_to_container(CustomControlContainer.CONTAINER_TOOLBAR, button) func _exit_tree(): remove_control_from_container(CustomControlContainer.CONTAINER_TOOLBAR, button) button.queue_free() print("Thank you for using Bessere Tests!")