Font-size switcher for therealdesign

Hi there!
Great template!

I'm having trouble establishing a rule for the Font-size switcher. I can fill in the ID but when I click the button "add rule", nothing happens to the front nor back-end. I can enable and disable all pages, but not enable or disable on select pages.

Please download template again and override files I've tested it and works properly so this is probably problem with your installation.