Thanks both!
And.. Thanks for the Key John, FSUIPC looks a very powerful program for control options. Impressive. As a check, it does see my joystick presses from my Hotas but it does not see any encoders turning or switch presses from the MCP.
Pete, yes I agree, I think this will be far more involved but It was worth a go to see if I could pick up those encoders/switches inside FSUIPC. When I previously used the MCP with full function (FSX/P3D), it did need FDS specific aircraft drivers/controllers. I may take this to FDS but it's an older piece of hardware and as you say they may have drivers in the future. They do have alot of projects on the go.
Was worth a try! Many thanks Pete and John.