Connection labels can be used instead of connectors and connector junctions to connect blocks and external ports without a visible connection line. All labels with the same name are connected. Connection labels are a good choice for connections of many blocks, e.g. a 3.3V power supply connection: The schematic can be more readable if such a connection is made with labels instead of many connectors that need to be routed and may cross signal connectors.
Choose Home: ComponentsConnectorInsert Connection Label or use the shortcut 'a' in the schematic view to add a connection label.
See also