DEVO 7E V4.0.1 can't change Mixer GUI in Plane mod

First of all,please forgive my suck English.

I installed deviationx 4.0.1 in my DEVO 7E,I want to fly my

DSM2/DSMX plane with it,but I can't change Mixer GUI from Advanced

to Standard when I change Model type from Heli to Plane, I try to

use DEVO/WK2801..... different protocol, it's same.

I can re-produce it in DEVO 7E emulator.

Please help and thanks for the great deviationx firmware

Hi PB,
Thanks for your answer.