TrackPunch lets individual tracks be punched in, punched out, and taken out of record enable without interrupting online recording and playback.
TrackPunch is a nondestructive recording mode. When a track is TrackPunch-enabled, Pro Tools begins recording a new file when playback begins. During playback, you may record arm or disarm, or punch in or out a combination of any or all TrackPunch enabled tracks.
TrackPunch automatically creates clips in that file at each punch-in and punch-out point. These clips appear in the track’s playlist, and the complete audio file appears in the Clip List along with the TrackPunch created clips. Up to 200 of these “running punches” can be performed in a single pass.