I haven't really use it much yet only while implementing, so may not be great. Fx rockers (the Hold, Off, On things) turn on Fx1 and Fx2 chains for the current active deck (left Desk 1 or 3, Right ...
Some improvements for the Mixtrack Pro II. Please use GitHub's issue tracker for bugs, thanks. Put the two files in ~/.mixxx/controllers. Everything is as explained in the manual except for the FX ...