how to unlock 'Additional Properties' in ForceWare 52.16?

This is not a developer question, and I apologize for that, but please try to reply:
With older drivers it was possible to unlock the Additional display properties by adding a registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\NVTweak\OemConfigurations
“ControlsOverride” dword 1
I found it most useful, since it allowed the simultaneous use of FSAA and coverage antialiasing (with visible quality improvement of antialiased lines), although the nVidia docs say it is not possible to do that.
Unfortunately, this tweak doesn’t work under the 52.16 drivers. Anyone knows how to enable these ‘Additional Properties’ on 52.16?
Thank you.