Hey,
I don’t have a solution but i was thinking about the same problem. I just post my ideas…
I was thinking about using the OP as a sequencer storage (finger sequencer) and trigger the sequences from another sequencer or live on the OP-1. The sequences would trigger samples (drum) from the op-1. Then i had the idea to make my drum kits “melodical” so i can play a melodic sequence but it still sounds like a repetitive drum beat on the OP but the midi out would be a melody.
Sorry 
I long since have been complaining that the OP1 Lacks Loop controls Over Midi (Track, transport.) Without this I cant get the loop controls onto my midi foot pedals. ignoring this limitation this Logic of Looping on the Op1 still works great. But I loose a hand. Basically the Op1 is a Great looper. Other than that I have a hard time Making the Op1 the center of playing live(like an octatrack; ipad; laptop) usually it is just a synth/sample for me. With the occasional complete piece that i just know super well on the Op1.
i just run it independently - treat the op-1 as a sound source. no need to clock it, just set the BPM and hit play at the right moment. it’s pretty rock solid and doesn’t seem to drift. if it does nudge the blue knob and you’ll get it back.
Check Virtual Flannel Boiler Room : I don’t know, if you you can figure out how he uses it, but you may ask him if you don’t get what it does at certain moments.