Can someone please point me in the right direction for making this work. I want to accomplish exactly what is specified in this thread's title. Seems like I need to map F2 to fn + something, and "fn +," would be fine.

I don't know anything about xmodmap. I can't seem to figure out how to install xmodmap. The only version I can find is for OS2007. When I attempt to install it, my app manager says it has 'incompatible' packages'.

Can someone please help me figure out how to make this work.

Thanks for your time and consideration.