I agree it would be great if you could just select a quarter note under conditions, but I can usually get the same effect playing around with the various note length conditions too. Here’s a pretty famous soli I input into Dorico for my analysis class a while ago. There were no MIDI adjustments at all, just the following conditions set:
Those conditions have the effect of making all the quarter notes short in this example. This can then be notated the way a player would want to read it (esp. swing era musicians) but will play back the way they would typically play it.
Dorico audio (again no MIDI editing at all)
1935 recording