DVD Menu access during playback

Good Morning..

Could someone explain how to access a ripped dvd's menu during playback under xbmc ? I can access it at beginning of watching a video_ts file without issue but whats the keystroke combination to redisplay the menu if for example i want to jump to a specific chapter after the movie has begun etc.

 

thanks

worked out... press and hold play/pause to bring up options .. movie menu available in list