Comment 1 for bug 909957

Also, same option for key-lock would be good. And maybe repeat? I dunno, I don't use repeat.

You could do either a simple preference dialogue option, or maybe better would be an android-keyboard-shift style three-state button that cycles: quantize off; quantize this track (same as current on); quantize always (same as current, with a red/orange dot, or just a a different colour icon).