This Pro Tools tip uses a feature of Pro Tools I think of as aimed at people working in Post Production - I usually associate Time Locking with fixing clips in place against a timecode location or an event on a video track. This tip uses Time Locking it to limit the effect of Shuffle mode to one area of the timeline.
Free Tutorial Video
In this free tutorial video I demonstrate how the shuffle behaviour of Shuffle mode is constrained by having a locked clip in the timeline. Subsequent clips and gaps between clips are unaffected by the shuffle behaviour happening earlier than the locked clip. Handy!