Reply to Traktor Mapping Question!

Hey DJTechTools!

So I recently got a novation twitch and boy is it a piece of gear. I recently tried it with traktor and it works as well as a traktor controller as it does for serato. Most things are mapped but I have a little problem I need help with.

The twitch traktor mapping doesnt have a mapped button for the track gain and what I wanted to do was make the tempo button's on the 2 decks the gain but when shift is held and tempo button is changed it will go back to moving the tempo. Now I know this is a easy fix but ive never played with the mappings and would rather get someone else's help so I dont fuck anything up.

Also would it be better just using the auto-gain thing that traktor has in its settings?