I just came up with this idea. So, basically, it would allow moderators to set a polygon or something zone, in which only players with the set permission can enter, while the rest will stare at it in front of a glass wall. This way, you can give your donators their own areas to hang around in, or mine, if it is a mine, as an extra benefit others won' t enjoy .
could've just walled off the zone with region protection, then set up warps for whoever in + permissions.