selecting record channels/tracks instead of blocks of 16 tracks.

Right now when using the recorder, you can only select blocks of 16 tracks. It would be great to allow us to select the channels that we’d like to record to, and not record dead space from track we do not require. This would also give us more recording time on 32gb SD cards, especially if you only need 17 or 18 tracks recorded. Maybe just offer a row of numbered squares to arm the tracks you would like to record to? I selected the wing for this request, but even the X/M platform could benifit from this.