Could someone explain how to use application profiles?

I’m on driver version 325.15 in Ubuntu GNOME 13.04. I have the application profiles option in the Nvidia settings application. I want to set it so that applications I choose have FXAA forced on (I don’t want this to be done globally as it forces it in applications like Steam and Google Chrome, and that looks horrible). Is this possible with application profiles? I so, how is it done? The profile setup system seems just needlessly complex…

You’d go into the Profiles tab and add a profile that enables FXAA, and then add rules in the Rules tab to choose that profile for individual applications, either based on their executable names or the name of a shared library that the application loads. However, it doesn’t look like there’s a profile key for FXAA. I’ll see if it’s possible to add one.