Controls the visibility of a cluster of polygons.
This property is applied automatically to the InvisiblePolygons cluster when you hide polygons using the commands on the View menu or their keyboard equivalents.
To apply manually: Select one or more polygon clusters, then choose Get Property Polygon Cluster Visibility from any toolbar.
To display: Select a cluster with a Visibility property and press Enter, or click the icon of the Visibility property located beneath a cluster in an explorer.