Hi Jim! i fount the problem! ;D when I open the C400 in plugins admin are 2 files: 1.0 and 1.1 note: image there is a mistake I made the screen without check on 1.1, but obviously it is a mistake when I change plane I still have 1.1 live if I remove the check, I can change the fuel selector! I can go even so, no problem, now that I know answer, but if you solve a solution, I'm here ;D