For those who like adding randomness to your pieces, you can do some quasi-random tweaks to track length for individual clips.
Example, create a 2 measure clip with a note playing on each beat. Create a second track and create and identical 2 measure clip with a note playing on each beat. You can create as many tracks like this as you want.
Then select the clip in Track 1 and go into Clip editor. Tap on an option in the “Loop Length” settings and change. Example, tap the 3rd setting and change to “75”. In Track 2, make that setting “50”. In Track 3, make it “25”.
Now when you play the scene, the tracks will gradually become offset, firing theirs notes at differing times.
What’s interesting is that you can make adjust to each clip in a track. So Scene 1 can all play full 2 bar lengths. Scene 2 can be offset. Scene 3 can be offset in a completely different way.
Not precisely randomness, but this can produce some interesting results.