I realize this is an olllldd post but yes, this was the one thing I did with the SoftStep;
I set up a simple control layout for the Repeater and it worked. That was before I was aware of the litany
of issues with the device, such as noisy, problematic EL lighting, a complete lack of tactile feedback, half-assed configuration software, an inadequate number of expression pedal inputs and a flimsy external MIDI box, to name a few. The EL noise problem alone makes using it with the Repeater a dodgy proposition,
because the EL strips in the SoftStep can induce noise in your instrument output chain.