Ok.
A classic case og RTFM.
My bad.
The looper becomes a roller in controller mode. You press on the roller (previously known as the looper) and press a drum pad, and all the sequences keep running, but this drum will roll with subdivisions corresponding the the subdivisions you mark onn the roller.
But it would be nice, to toggle this in the software, so you could set it up, to be a looper allways.