Version(s): 10, 11
Select File > Drawing Options > Material Dimensions > Material Options. The area’s cleanup location is linked to the structural slab locate. By selecting “Bearing” the area will find the bearing material in the wall of that plan, which on an exterior wood framed wall would be the stud.
Version(s): 12 +
Once the area is drawn it can be edited. In the properties it can be changed to Exterior Edge, Outside Bearing Edge or Interior Edge. Then a Cleanup will set it into the correct place along the walls.