As the title suggests, i want to put F9 (Tyre display) onto my wheel button, is there any way to do so?

Check this thread:
http://www.lfsforum.net/showthread.php?t=61836
JasonJ already answered my question.

Im really computer ilterate and that really confuses me, ive already set the arrow buttons on my wheel so i can chnage arb settings etc but just want it so i don't have to look down and mess with my keyboard. If anyone can explain that to a numpty id be gratefull

Quote from pearcy_2k7 :

Im really computer ilterate and that really confuses me, ive already set the arrow buttons on my wheel so i can chnage arb settings etc but just want it so i don't have to look down and mess with my keyboard. If anyone can explain that to a numpty id be gratefull

OK,i'll try to explain what to do
If you just want to have a replicate of the F9 button on the steering wheel the only thing you have to do is:
Open LFS;
Go into the Options menu,then Controls;
Here you can see that you have two sets of commands that you can use (CTRL+ and ALT+).
Select one of them and press on the text space under any of those and type "/press F9" without the quotes.
Press the button on its right and assign a button while it is flashing.
Now you have a button on the steering wheel which acts like a F9 button.
If you want you can follow THAT guide to make a button cycle thru F9-F12.