Problem
How do I make a basement or a foundation?
Solution
The basement will be considered the 1st floor. Whatever sets on top of it will be the 2nd floor.
EXAMPLE:
When you have your walls drawn on the 1st floor do this
Edit> Select All
Edit> Set Object Elevation. Note: (Mac Computers: Edit> Elevate Object)
Type in -7-0 and click OK
What this does is take out the 8ft default wall setting and sinks them into the ground 7ft.
This leaves 1 ft of the walls above ground.
After you draw the 2nd level its elevation would be set to 1-0 ( 1Ft above ground).