A few questions about the editor:
How would you host multiplayer servers online? Because from what I remember in the Neverwinter Nights games, there's an option to host the server as a player, as well as through a Dungeon Master program. Maybe there might be a program to host the server so that you won't have to be there?
Will you be able to color objects? (This includes furniture, crates, etc.)
I'm assuming you're also able to color the different parts of buildings, too. Is this correct?