Page Rights are specific rights that are applied to all objects on the page, including the page itself. This is new to version 4.5.
The bulk of the rights operate just like all other rights areas of Savvy. The main difference is that you can specify display rights for the page. This will allow you to specify, for example, that the anonymous group can't view a specific page.
To do this simply apply the anonymous group to that page rights, and specify the display to 'no'. This can be done to any user account or group.
Example of Page Rights