[SOLVED] Recording mix on Traktor with CDJ900s & DJM700

Hi everyone,

I have this 2xCDJ900 & DJM700 setup.

I setup the Traktor aggregate device thing and everything seems to work correctly except 1 thing. I'm not sure if it's really possible but it seems that I cannot record my set with Traktor software's record function. How can I send back the audio to Traktor to record the mix I'm playing?

thanks