https://inmusicsupport.freshdesk.com/en/support/solutions/articles/69000845748-revalver-setup-midi-control-for-your-fx
ReValver | How to Setup MIDI Mapping within ReValver : inMusic Support
ReValver models guitar amplifiers, stompboxes and fx at the component level. This guide will help you connect up a midi controller to make on the fly changes.
how to setupmidi mappingwithininmusicsupport