Yes,
after a long time it's decided, i have a kite ( which is used )
i've looked for information then, i could improve it (maybe later) with this post :
https://www.wheelchairdriver.com/board/ ... TE#p107338
i can build a specific interface and it's not so hard ( for english but if you're reading me, you should have noticed that it's not my origin, then bordeaux in france is more precise for me ) but i'm not sure...
but i need this wizard 5, and didn't find the one i need... some idea:) ?