This might be an easy one.

I have two thumb buttons(#4 & 5) on the side of my Logitech MX400 mouse.

Arma only sees that button 4 can be used in Controls and does not respond to #5.

When I look in my player config file to see how button 4 is labled, it's a number {65539}.

How can I use #5 in my config file if I cannot determine what number it is?