Many thanks Krysta,

I use Glider 1 and not Glider 2 because my plane uses flaperons while Glider 2 is for 4 servos wing, without the flaperon mix. I have a 6 channel receiver: right flaperon on ch.1 and left flaperon on ch.6.

Your mix 1: elevator preset working as expected
Your mix 2: right flaperon preset working as expected
Your mix 3: in Glider 1, I do not have FLAP. This is my problem. I tried, Flp1, Flp2, Aux1, Aux2. No reaction from the left flaperon !

Same thing with the 2 linear mixes: the left flaperon is working as expected on Pmix 6, but noway to make the right flaperon with Pmix 7.

I try another combination with Acro. In this case, I have access to the function FLAP in Pmixes and am able to activate BOTH flaperons in an ofset mix. Same thing with airbrake: by using Pmix 5, Master Throtle, Slave Flap, I am able to move the airbrake the way I want. BUT, in this mode, I lost the Start Ofs and Run Ofs which I want to use for controlling the glider.

My question: is there a bug in the Glider 2 mode ? how can I move the Right flaperon with an Ofset Pmix ? (the flaperons are working fine as ailerons).

Thanks for your support