Keyboard driven step automation.
Good example of why this is relevant is snare rolls and flams.
Click notes in with mouse, fuck with velocity settings with the mouse continually to try to get an exact value with the mouse which is only doable zoomed in, etc. Total time fucking with it: about 40 seconds per 8 bars.
Type notes and the values you want in with keyboard. Total time fucking with it: about 15 seconds per 8 bars.
If you’re dealing with complex drum patterns, with lots of note data and step automation the workflow differences can save literally an hour or more. It’s why the jungle and IDM guys use trackers. Cutting up breaks and doing all of those edits by hand with mice is doable, and yeah there are some that’ve done it the hard way in pro tools or logic or ableton or whatever but doing it the hard way is hard.