А хотя сорри на сайте прописано что есть миди by и аут
... и добавил:
CONTROLLING OTHER DEVICES VIA MIDI
While not designed as a dedicated MIDI foot controller, Commander will send program changes
to any external MIDI device. This is useful if you have a multi-effect unit that you want to change
along with your Pedal Switcher loops.
By connecting the MIDI OUT from a Pedal Switcher into an external effect device, Commander
will send out the program change as well as switching your Pedal Switcher loops. Commander
sends program changes 1-10, corresponding to the preset number, on MIDI channel 1.