Assigning Joystick buttons

[617Squadron]

Hi,

I need some help with question about something that is doing my head in. I have a Microsoft Sidewinder USB joystick and the X, Y and throttle axes have been very easy to assign in the Aircraft menu.

What I can't figure out is how to get the Fire and other buttons assigned on the joystick to fire the guns or other functions; I can't seem to find the 'Fire' option in the Aircraft menu, which is what I thought was the most logical place to find it.

Can someone please explain how I assign buttons 1 to 8 on a Sidewinder joystick in simple terms? Do I have to manually edit a file?

Thanks