To create an override measure within an existing playback loop, first select the take that contains the loop and record-enable its player. Switch to the graphic editing view by clicking on the graphic editing button. Playback loop markers will appear in the time line. Then do one of the following:
Manual override: Click in the time line to position the time wiper within the measure that you wish to override. You must choose one of the repeating measures within the loop, not one of the loop source measures. Choose “Override Play Loop” from the Region menu.
Automatic override: With the record button on in the control palette, play new notes anywhere within the loop. If you play into the source measures of the loop, all repeats of the loop will receive the new notes and no override will be created. If you play into a repeat bar of the loop, the new material appears only in that measure.
In either case above, a loop override marker will appear in the time line to indicate that the measure is now editable independently from the rest of the loop. Also, you will notice that all notes in the override measure (including the new ones you just played in) now have rounded edges to indicate that they are no longer just repeating ghosts of previous notes.
