well, the biggest issue would be to get a program that does the Kaoss effects. I know you can turn the track pad into a midi device with HID to MIDI (Ean wrote about it in an article a while back)
okay you need version 0.6 - this allows you to have more than one area on the screen - start traktor first - then open midimouse - you can then select it in midi setup and it should send midi notes as per your settings - make sure you use a different channel from your other controllers - use the learn button to assign these notes to any control you like
I’ve attached 2 midimouse files - open them both and it will give you 2 separate control areas - on my macbook pro 15 these correspond to decks A and B - I set them up with a modifier so that they only work if I press this button
As for what you can do with them, well that’s up to you - probably 2 of the parameters in the advanced fx panel would be a good place to start but combining specific fx and/or filters using macros could also be good