Reply to Maschine and Traktor

Hello, I just recently started using Maschine sync'ed with Traktor in my setup. I'm using an S4, and after watching the Dubspot video 600,000,000 times, I can't figure out how to put Maschine on just one deck in Traktor instead of over the master output. How would I have to setup my output in Maschine to achieve this or is it even possible without another soundcard? Much appreciated.