deviation and expo

I would like to put expo on the aileron channel.
Not for Helis !
I can`t find the way how it works ??

Which transmitter; 7E/10, or 6S/8S/12S?

Change the curve type to "Expo" (might currently be "1-to-1"?), then click on this "Expo" box to enter the settings area. For a 7E/10 this involves highlighting the box (can't remember if you use R+/L- or Up+/Down-) then pressing ENT, on a 6S/8S/12S simply press the Expo box.
The thing to remember is that on some spin boxes (boxes with arrows to change contents), some of the contents themselves are buttons; you spin to choose, then press to change.

Doesn't matter whether it's for a heli, plane, car, tank, or killer-robot-monkey, it all works the same.

Thank you,
i found my mistake. AnytimeI had edit an inut an he screen, I ave to press "ok" and go back. Then the input is saved.No "ok" - no save. !!

Yes, it's for safety. You have the chance to redo changes before applying them to a running machine...