Thinking more about it, you wouldn’t really need All Visitors or Any User Role, since that is determined by WP, and what we want is the ability to essentially limit the number of people who can edit the given page to a subset of people who have editing permissions as granted by WordPress. So it might look more like:
Limit Edit Access to only:
O – Selected User Roles:_______________________
O – Selected Users:______________________
(these roles / users must already be assigned edit privileges)
So anyone who wanted to edit the page would need standard WP Edit privileges, but if either of the two fields above was filled out, Edit privileges for that page would be limited to only these uses or roles.
