I'll add to this list as I receive questions. If you have one, please contact me: flosaic at gmail dot com
No, the mapping doesn't control FX units 3 and 4, although they can be running and controlled some other way.
The info scrolls are based on a hack of the Denon hardware, which only outputs data for these two decks.
These two modes offer control of all 4 decks, so there's no way to decide which two decks to EQ.
I set up this mapping to cover the functions I use most often, and under the constraints of Traktor's two-condition system. If you think a major feature can be added, and have a suggestion for how to do it, please contact me!
Most of the work was done late at night after my three young children finally went to bed, so most errors can be chalked up to sleep deprivation. If you find a mistake / bug / place to improve code, please contact me!
There's only one Prep Mode, and it's for Deck A. My little brain can only process one track at a time!