Creating Your Own Beats??

Can anyone tell me what the length needs to be for each thread on the beat buddy if you wish to create your own beats?
I can easily create what I need that isn’t currently on BB on my Garageband app, but I want to make sure that each section is the correct time length.
Any help in this area would be great b/c there are several beats that I need (that I currently created on my loop pedal) that aren’t available in the presets on BB so Id like to fix that!

It’s actually not a matter of time but rather how many note events are in the time segment. The BeatBuddy pedal allows for song parts with up to 500 note events (it only counts note-on events, btw)