I did some work for good communication for MFL with my Nocturn. It works via a MIDI Remote Script that attaches itself to a MIDI Effect emulating the Nocturn. There are just 8 knobs, 8 buttons and a slider. Communication is both ways so the Nocturn leds are updated when the knobs on the emulator are changed. A second version uses 2 pages on the Nocturn and sports 16 knobs, 16 buttons and the slider.
You have to attach the knobs and buttons to something else to make these devices to good use.