Well as long windows detects all your buttons for your yoke, you can go inside the FS and change any of the keys.Including the ones you want the way you want .
I have the saitek Pro. But those keys and functions came already by default.On mine i didn't do it but try to instal the drivers that came with your yoke. Then go to control panel - game controlers-click on the device (if windows as detected, you will see it there)- avanced, and see if they all respond when you press them.Then inside of FS go to - settings - controlers and look for the desired function, delete the key is there by default- choose new key - and press and see if it is now the new key you want.Repat the same process until you are happy with it.Maybe then you need to configure youir axis for power, prop, and mixture.
But first see if you can get it this way, then we see what to do next.

Well that i cvnt help you much on that part.Mine only have one hat. But i guess FS will give it the functions of maybe, trim up and down or flaps up or down.
You need to waste a bit of time in the Flight Simulator and see what defaults he give you, then take note and change them on controler settings in the FS.
Keep us posted