Chase bliss warped vinyl hifi

So

I’m trying to get the warped Vinyl hifi to accept midi messages and change the midi channel via omni port. I have the omni port set up for MIDI Ring Active. I have tried to unplug the power, hold the foot switches down and then send the PC message for midi channel 4 to the pedal.

Unfortunately, all this does is affect the ramp of the pedal and seems to affect the tap footswitch only. Cant seem to get the toggle switch diode to light up green showing its accepting midi messages on that channel. Can anyone point me in the right direction?

MC8 → TRS CABLE → CBA Warped Vinyl Hifi