Is it possible to have a drag-and-drop feature for the terrain? Maybe a sepparate window for dialogue trees as well, where you can pull up any of the characters in your scenario and be able to add/edit new branches of conversation.
If I wanted to make a game that works best with only one or two PCs, is there a way I could script it so the player can choose only one or two of his characters to enter the scenario, and leave the others in limbo?