Two NanoKontrollers and Traktor, how does one assign them to separate midi channels?

Two NanoKontrollers and Traktor, how does one assign them to separate midi channels?

Refer to title, just scooped up another NanoKontrol from a friend of mine and am having issues using both of them with Traktor. I’m using version 3 and cant seem to find away to assign them to different midi channels. Any help is much appreciated!

korg kontrol editor.

RTFM no? Thanks for the info though, much appreciated!