This problem will probably be a problem for people making maps for GM use in the Editor... but when making custom regions... the GM has the same camera / minimap restictions as the players.

The problem is... it prevents the GM from moving to another "locked" region in the game in (like the second story of a building) to edit it. Furthermore, since the GM doesn't have a player... it isn't possible to update the GM's camera position to another region. It can be changed by possessing an NPC, but the minimap will never be updated to the new region.