I'm setting up this camera for a friend and I'm wondering whether it's possible to set the Fn1, Fn2 buttons to call up Custom Settings C1, C2, etc. (These are available on the dial on top of the camera, but buttons would be much more convenient, as with the OM-1.) From what I can see in the manual this assignment to the Fn buttons does not seem possible, but maybe someone out there has figured out how to do it. ?