Ok, I know what you mean, but I normally use other words like datarefs and plugin. I did a python "semi" plugin to read data from X-plane in to a RealBasic application and also fooled around with UDP reading the same way. However, what I really wants to achieve with the crj200 right know is to hook the "not defaul" daterefs up with some shortcuts, so the mouse can be left alone. Programming my way out of it seems a little much since xjoymap does it all. But, still I have this issue with the AutoPilot not functioning correctly. Must be an error in my system, but where ?? Re Peter