Individual elements can be hidden by selecting the elements and selecting the Hide command from the Display Menu. All hidden elements can be made visible again by selecting the Show command from the Display menu. Zones within the mesh can be quickly hidden by selecting with the Select Material tool.
In many cases it is necessary to hide all but a certain set of elements. A quick way to accomplish this is to select the set of elements using either the Select Elements or the Select Material tool and select the Isolate command from the Display menu.
Related Links:
3D Mesh Display Options