btn = Button(text=index, size_hint_y=None, height=30, background_color = (0,0,5,1))#btn.bind(on_release=lambda btn: self.load_config())btn.bind(on_release=lambdabtn:dropdown.select(btn.text)) dropdown.add_widget(btn) config_select_button.bind(on_release=dropdown.open)#dropdown....