3-D View
No modeling is done in the 3-D viewer. However, it provides a convenient and versatile means of viewing the structural model in three dimensions.
Issuing the View – 3D View command initiates the 3D Viewer.
For more information about the 3D View, see the 3D Viewer Manual.
To exit the 3-D Viewer and return to the plan mode or the elevation mode select File - Exit 3-D View.