code: def advance_cell(self, reverse=False):
          
          if not reverse:
              move_func = self.get_current_editor().go_to_next_cell
          else:
              move_func = self.get_current_editor().go_to_previous_cell
  
          if self.focus_to_editor:
              move_func()
          else:
              term = QApplication.focusWidget()
              move_func()
              term.setFocus()
              term = QApplication.focusWidget()
              move_func()
              term.setFocus()
docs: Advance to the next cell.
  
          reverse = True --> go to previous cell.