The only use of the F keys I've found on a IIgs is when running a PC transporter in my Rom 03 system. If I recall correctly, it has to be Rom 03 for the function keys to do anything, but the keyboard will work just fine on a Rom 01 except for the function keys.
Wait...are you telling me that if I just buy this keyboard and hook it into my Apple //gs the F's will not work by default? I need to upgrade to ROM03 or use a ROM03 and have a problem called PC transporter in order to use the function keys in this keyboard?
But how in the world was I able to play adventure construction set my childhood in my apple //c?