Mondo said: So I just started mapping here and I drew a box to represent a small room. Then I drew a table in the small room. Then I thought "Wait, the room needs a door!" But I can't erase sections of the wall, I can only delete the entire wall. Is there a way to delete just one section of something? While you cant split lines, you can draw over them. If you use a solid background colour, you can draw a box of that colour over the line where the door should be. Or you could find a small, simple pictures suitable for use as an archway, door, etc. and when you draw room, just place copies of those pictures over the area you want to be a doorway.