akstudio - I would like to Collaborate with you on using MDP2 to control Organteq2. I have been creating layouts with various features for Hauptwerk and GrandOrgue. Several of hundreds of layouts I created. Also see my posting earlier today.
https://mididesigner.com/qa/9769/named-ticks-program-sequential-random-midi-stepper-outputs
I don't have OrganTeq (yet) so am not familiar with the organ sets, if more than 1. Also is functional MIDI capability similar to HW. What Stepper capability does it have? What setup do you have (computer, monitor, audio, etc.)? Many other questions I have to get familiar with OrganTeq.
Contact me through my website. It is pretty old and outdated. https://djsorg2062.wixsite.com/djsorgansite/ipad-controller