I just checked sending notes thru EPPlus, seems to work syncing MD with OT.
I use 3 trig counts per step, hence 12 notes per quarter note. Don’t know why it isn’t 24…
No, it doesn’t have midi clock. 
I’d prefer a 2nd OT. 
Btw your mixer is USB and you can mix LP16 16 tracks, that’s it ?
I use EPPlus and other midi processors for different experimental midi purposes, the most interesting being slice control IMO.