These can be used to quickly change notes or draw in controller data such as pan, velocity or mod x and y.ġ9: Many of the tools that you use to work with MIDI in the Piano Roll editor can also be found in the toolbar that appears at the top of the Playlist window. 18: As we have noted before, MIDI can be edited directly from the Step Sequencer view as well, by using the Graph and Keyboard editor windows that can be revealed from the top right corner of the window.