I found out something interesting regarding Editor and GM Mode interaction.
When you open up GM Mode and Editor at the same time there appears a warning that this cause data corruption.
But if you do so, you can edit a non used scene in the editor, save it, load it in the GM Mode, and you see the changes. Then you paint surfaces and change something and load again another scene. Switching back to editor make some terrain / item changes. Generate new AI Grid, save it. Now again as GM you reload the scene. Voila there you have the changes but still you beforehand painted surfaces.
I ask myself what serious data corruption could happen?
I see here really nice potential. Having one GM and one world builder together in the team (a shared folder of the mod is possible?)
Sure, mapping a nice scene takes ages when suddenly the freestyle GM led RP session wants to go to Kings Landing, but honestly this could be a nice tool to make some on the fly changes.
Also without live editing in the GM Mode this has potential: As the GM Mode always loads the recent scene but remembers stuff by its own like surfaces and their coordinates you can alter the saved Gm game to your needs between the sessions.
@DEVs: I really would like to know more about GM - Editor interaction. An saved game exporter / importer to Editor would be nice...
just had to share the insight.