M-audio Expression Pedal Manual Access

Yes, with proper polarity setting. Works with Arturia, Nektar, Akai (same polarity as M-Audio).

Yes, on Oxygen Pro series (Exp 1 and Exp 2). Assign them to different CC#s. m-audio expression pedal manual

Toggle the small switch on the bottom between Pos. 1 (default for M-Audio) and Pos. 2 (reverse). Yes, with proper polarity setting