def transform_bounce(self):
        """ |> -> |><| Clone all the frames in the range so they repeat once, reversing the 2nd half """
        self.undo.push()
        self.mov = bounce_plugin.transform_movie(self.mov)
        self.clearStatusLine()
        self.mov.nextFrame()
        self.mov.prevFrame()
        self.setPlaybackRange(1, self.mov.frameCount)
        #self.hardRefresh()
 |> -> |><| Clone all the frames in the range so they repeat once, reversing the 2nd half 
durdraw/durdraw_ui_curses.py