Yes... CS saved with the Songbook, and the ability to edit it easily in the Sequencer (to quantize it or do a little editing if you made one flub) would be handy.

The 'Third Hand'... Maybe someone needs a snappy name for the feature? Chord Sequencer really doesn't describe what it does. There's no 'sequencing' in the sense that anyone currently uses the term. It's a LIVE third hand..!