S4 Keyboard mapping help

DJ Software & Apps Traktor
1

S4 Keyboard mapping help

Hey guys
Trying to make my job a little easier by mapping some commands to the keyboard.

  1. How do I map a key on the keyboard that will put a deck into “relative” mode from internal playback?

  2. How do I map a key on the keyboard that will reverse my crossfader for both decks (same function as “Shift + 1 or 2” button under the gain nob)

I only use 1 Turntable and so need to reverse the crossfader when I change decks.

Anyhelp would be appreciated. Thanks heaps!