There is a couple of features I feel would be useful:
Wait Note to Start:
An option for Note Stream Recording (Realtime) where the Octopus will start running(and recording) upon receiving a note. (This facility can be found on Roland MC-80/MC-50/MV-8800).
Similar to Note Skip but for Tracks (obviously when chained). Just as Note Skip is, Track Skip would be great for live performance.
As Tracks can only be Muted and not skipped I have tried simulating this by building page variations but it does not have the same spontaneity.