cue.PauseOnExit needs improvement

Suppose I have a video with several subtitles at various points.  I want to give the user the option of pausing at every subtitle.  I thought I could use cue.pauseOnExit, but that doesn't accomplish this.  I can make a short cue, of maybe half a second, and the subtitle will show at the duration of the cue, but then the video stops, and the subtitle disappears.  It would be nice if the subtitle could be made to stay at the exit and only vanish when the user starts playing the video again.  That way, the user can step through the video, from subtitle to subtitle.-- Gideon