I can not set any midi mapping to "override factory map":
i really need this fuction , just like i used on old X1 MK2 or any other traktor devices:
i also found i can not see the "X1 MK3" in "Controller Editor" APP (Ver 2.8.2):
It's not done yet. You will have to wait for a Traktor 3.10.X update to come along.