- Press Ctrl + Tab on your keyboard to return to floor plan view.
- Click Down One Floor
to go to the basement level (Floor 0) in floor plan view.
- Zoom
in on the basement.
- Select Build> Door> Sliding Door
then click to place a sliding door in the foundation wall.
- Open the sliding door for specification and make it 84 inches wide.
- Press Ctrl + Tab to return to the 3D Camera view.