I'd like to be able to overlay one chord on top of another using the same patterns when a track is frozen.
One way this could work is if you copy one set of chords to a spare melody channel then have an option in 'freeze tracks' to transpose the same patterns used in the first playback to a new set of chords you enter on the chordsheet.

If you're with me let me know otherwise I'll try and explain this a bit better.!

Alan