1. A scrollbar with increase/decrease!
I dont know about you guys but the current scroll scheme is too disorienting.
You get a sense of "where am I" evertime one zooms in & out. The prebar length keeps changing and it gives a sense of a slipperry slide feel!
It would be much nicer if it did not move at all.
A scrollbar with the increasing & decreasing adjuster would give Tracktion a more solid feel IMO.
2. (Optional) Full screen edit mode for piano roll edit! PLEASE.
3. The ability to get into record mode from play, and play mode from record without stoping the song, just like Ableton Live, Reason, Logic etc.

