code: def _force_on_change(self):
          
          for layout in self.force_on_change:
              if layout in self.available_combinations:
                  if self.active_layout != layout:
                      self.displayed = layout
                      self._apply(force=True)
                      self.py3.update()
                      break
                  else:
                      break
docs: Handle force_on_change feature.