I am using 2018 Home Designer Pro. The problem is if I click on a wall, it shows the length of the WALL, not the size of the room. I need to know the size of the room, not the length of the wall. the wall includes several inches of other outside wall and does not account for drywall. I also want, when I am finally able to do that, to be able to connect the foundation, 1st and 2nd floors, so that when the outside walls need to move to accommodate the change in room size, they all move together.