Are there other controller surfaces like for microfreak or mpk mini?
Better to start a new thread than post to one last updated 15 years ago, but start with the manual:
Microfreak is a synth, are you sure you didn’t mean microlab?
MIDI keyboards usually require the Generic MIDI control surface, with the exception of latest Novation mk4 ones that have a dedicated control surface.
Tell me what you are trying to do, and I’ll tell you what to read or watch.
Moved the thread to its own thread, and closed the one it came from that was 15 years old. Control surfaces have changed a bit since then.