In the next release of the sim, we'll be looking at making radio/joystick setup easier. So aside from the main radio/joystick setup where you can still calibrate and remap your main stick controls, there's now an Advanced setup page which lets you individually setup your switches/axes/buttons to different functions, reverse controls or calibrate certain axis without having to redo everything.
One thing picked up on during this is the ability to tell the sim if your axis doesn't have a centre point - especially true of the 2 position switch, or analog triggers on gamepads... just in case you were wondering what the option was for.
So a question: Is there anything special you want to be able to setup on a switch/azis/button in the sim that you can't already?