here is a little funny workaround to use wav-loops instead of midi-loops (very limited).
Make some wav-loops, for example:
- 2 Bars 120 BPM
- 4 Bars 120 BPM and so on, all with the same tempo, length as you need
Make a new Drum-Kit, for example use loop 1 for Basedrum and loop 2 for snare.
Load this Drum-Kit.
Make a new song with 120 BPM. For loop 1 make a 2 Bars pattern with only a „hit“ on „basedrum“ on the first note. For loop 2 make a 4 Bars Pattern and a hit on „snare“. For additional loops use other drums or cymbals.
As you see, this „drum-kit“ is only working with 120 BPM. So you have to make a drum-kit for every song, but you can loop complex arrangements.