just set afterburner on same axis you use prop or mixture, afterburner axis at max will allow push f/a-18 normal, if move axis to min it will stop at max mil without afterburner and will works with 3rd party jets as has to. if you haven’t axis for that you can use button or same axis you use throttle. just opposite direction and revers mark or opposite. in this situation if you have 3rd party jets. you can create two profiles. 3rd party jets don’t need afterburner mapping. f/a-18 need