RE: Controller issues with Art-Tec EF-2000 2.4GHz
With simulation program input mixing is done via the software.
You normally have to set the TX to treat the inputs much like a standard wing plane.
Because you have an EF2000 with elevons, this conflicts with what FMS expects.
Switching back and forth will also likely put your EF2000 out of trim during flight.
If you will not be flying for a while, then set the TX for normal aircraft types, and use that for FMS.
Once you are flying I'd suggest using another TX for FMS. You can buy a suitable PC unit for about $20.00 from Nitroplanes.