I have a Xone p5 and a K2 to manage TRAKTOR, but I would like to change some buttons of the K2 to play more friendly. Should I mapping it directly on Traktor - control manager or do you recomend other way ?
External mixer or not makes no difference. At least not that I'm aware.
If you currently use the K2, you should already have a mapping for it in Traktor controller manager. You can just change that.