AND Connectors, denoted by a small square, are used to logically join two or more line symbols. This check box determines whether the connector is displayed. Sometimes it is useful to use the connector when the diagram is being drawn initially but not desirable to display it after the diagram is finished.

The AND indicator is visible when there are zero, one, or two connecting symbols. Normally, when a third symbol is connected, the AND square disappears, leaving only the connecting lines. Use this command to force the AND indicator to show at all times.