code: def cmd_cameraview(self, args):
          '''camera view commands'''
          state = self
          if args and args[0] == 'set':
              if len(args) < 3:
                  state.view_settings.show_all()
              else:
                  state.view_settings.set(args[1], args[2])
                  state.update_col()
          else:
              print('usage: cameraview set'f cmd_cameraview(self, args):
          '''camera view commands'''
          state = self
          if args and args[0] == 'set':
              if len(args) < 3:
                  state.view_settings.show_all()
              else:
                  state.view_settings.set(args[1], args[2])
                  state.update_col()
          else:
              print('usage: cameraview set')
docs: camera view commands