Group Policy to Force Remote Desktop NLA Radio Button

Hey Guys:

I'm looking for a script or GPO to force the Network Level Authentication (NLA) for Remote Desktop.

I've searched and found a lot of info on how to disable the "less secure" remote desktop option but can't figure out how to force the "more secure" radio button.  When I disable the "less secure" option Windows still defaults at "Don't allow connections to this computer".  

That's what I want to change.  I want the GPO to force the "Allow connections only from computers running Remote Desktop with Network Level Authentication (more secure)" option.

Any ideas?

Thanks!