ive mentioned it a few times . . .the ability to Start and stop individual tracks via midi note on and off messages and also transpose the selected tracks at the same time . . . sounds simple but allows the user to create polymorphic ideas to then record into another sequencer or even back into another octopus track . . . i know the Octopus can change pages via program changes ? but it cant start and stop tracks via midi note on and off messages ? or can it ? been looking 
and hoping