Custom Broadband, 5 independent expression outputs with range and aux knobs, dual input cv/exp sources, which you can assign to each out via the toggle on each output. So you can run a step sequencer and a triangle lfo as the input sources and assign one of them to each out (any combination, all can run the same source or your can assign to taste, or flip back on the fly to the other souce) and set the amount of sweep on each output via the range and aux knobs. The knob on the side is to manually sweep/control when there is nothing plugged into the cv aux.