Other features of 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 393

Fig. 19.13 Fourth example - Printing/Plotting
3. Erase the viewport with a click on its bounding line. The outline and its
contents are erased.
4. Click the Model button. With a click in each viewport in turn and
using the ViewCube settings set viewports in Front , Right , To p and
Isometric views, respectively.
5. Zoom each viewport to All .
6. Click the Layout1 button to turn back to PSpace .
7. Enter mv at the command line, which shows:
Command: enter mv right-click
MVIEW
[prompts]: enter p (Polygonal) right-click
Specify start point: In the top right viewport
pick one corner of a square
Specify next point or [Arc/Close/Length/Undo]:
pick next corner for the square
Specify next point or [Arc/Close/Length/Undo]:
pick next corner for the square
Specify next point or [Arc/Close/Length/Undo]:
enter c (Close)right-click
Regenerating model.
Command:
And a square viewport outline appears in the top right viewport within
which is a copy of the model.