def METHOD_NAME(self, index: int):
    self.trajectory.METHOD_NAME(index)
    self.control.update_replay_time(
        self.trajectory.current_index * (1 / self.rec.fps)
    )
    self.render_widget.render()
    with QSignalBlocker(self.control.slider):
        self.control.slider.setValue(self.trajectory.current_index)