I did a research and stumbled into your tutorial, very well done !If you do a search you'll find a useful tutorial on how to set up the MC6 with the FM3. I was using mine with 'presets scenes effects' in a way very similar to the 'OMG9' that people do with the FC6 and FM3..... below are my FM3 Layouts and MC6 Banks that I used. You should be able to upload these to your devices if you want to go that route - may need to change some global settings and you need 2 MIDI cables since this uses 2 way communication.
PS - here's the tutorial: https://forum.fractalaudio.com/threads/my-omc9-setup.172031/