I agree! a MIDI track "don't follow" option would *really* help me out. I'd like to be able to play a MIDI piano track freely and then go back and adjust the tempo map to fit the MIDI track. But the closest thing I've found is the MIDI "Stretch" feature, and this feature has problems -- the most significant is that it only stretches the notes, but ignores controllers like the sustain pedal. It's practically useless for my MIDI piano tracks. But the fact that this feature exists says that the developers *could* make a "don't follow" option on the MIDI tracks and allow us to scale the time independently. Right now, the only thing I can do is convert the MIDI to an audio track and use the "don't follow" option that way... but I lose all my ability to edit the notes.