Newskill HANSHI Manual page 7

Keyboard Hotkeys
4. WASD can be changed as Direction Arrow function by pressing : Fn + W
=
Press Fn + W again, WASD comes back to normal letters function.
5. 6-NKRO(Default mode)/Full-NKRO switching by pressing :
+
The default mode is 6K mode (USB standard mode);
If the end user needs to switch to NK mode, press Fn + F10, all the keycap-illumination (if any) will be lighted off
temporary; several seconds later, these keycaps will be lighted up again.
That means the switch has been changed successfully.
If press Fn + F10, the keyboard will be returned to 6K mode again.