Feature Request: Add player to group on region enter / remove player from group on region exit

This feature would pretty much be the ultimate feature. It would allow you to, for example; install a weapon mod that uses permissions to allow players to use the mod-weapons, then give those permissions to a special unoccupied group. When the player enters the region, he is added to that group, and allowed to use the weapon. When the user leaves / dies / teleports / disconnects, the user is released from this group and no longer has the permission.

superperms doesn't support groups natively

they could make it work for all the major permissions plugins that hundreds of people are using.