code: def on_click(self, event):
          
          if event["button"] == self.button_reset:
              self._change_active(0)
          elif event["button"] == self.button_change_time_format:
              self.active_time_format += 1
              if self.active_time_format >= len(self.format_time):
                  self.active_time_format = 0
              # save the active format_time
              time_format = self.format_time[self.active_time_format]
              self.py3.storage_set("time_format", time_format)
          elif event["button"] == self.button_change_format:
              self._change_active(1)
docs: Switch the displayed module or pass the event on to the active module