Navigate by "step"

[SuperDisk]

Q: Say I'm tracking with one row = one 32nd note, and I'm keying in a motif that has eighth notes, quarter notes, and dotted quarter notes. For a quarter note, I would need to add a note and then move down one step. If I set step to four rows, adding a note moves down by one step, yet up and down move by one row. How do I move the cursor up or down by one step?