You can define a volume of a model to display in a view, using the key-in WINDOW VOLUME. After entering the key-in, you enter two data points that define diagonally opposite vertices of a rectangular volume, then select a view in which to display the information. In effect, this key-in works in a similar fashion to the Window Area tool, except that the z value (depth) of the defining points is taken into account.

Typically, this key-in can be used to display a part of an existing model, where you can snap to existing elements to define the required volume.