I am using payware version of FSUIPC by Pete Dowson.Having CH Yoke USB I have assigned mixture axis lever to provide for reverser input and it works pretty well. I have also tried to assign prop lever to act as a spoiler lever but unfortunately the values in the respective window referring to spoiler range do not change.Is there any way to activate that?Thanks for your help,Dom

Go to simflight.com and there the author, Pete Dowson has his own forum. He will be able to assist you better than anyone.