The Box object is very useful in modeling because it is
used so much in common objects. For example, many outdoor tables and benches
would use a box for each of their legs, and the rafters of a pergola would be
boxes as well.
To add a box:
Click the AddBox button that appears near the top of the screen
under the Modeling tab.
Click an area of your landscape to place one corner of the box. Press the
Esc key to cancel.
Click a different area of your landscape to place the opposite corner of the
box. If you would like to input the distance and angle manually, place the first
corner and then press the Enter key.
The picture below illustrates a box shown in the