Connections between the modules can be defined within the Create Connection - Interactive tool, which is invoked by clicking the icon.
Connections can be created between modules to be connected either by selecting tagpoints from the list in the panel, or by picking tagpoints.
Hint: Pick and drag on the left hand side of the tags to ease selection off the screen after clicking the icon.
Force ID's for connectors gives you an option to define the numbering pattern to a connector, so that the connection elements created by realization of those connectors fall in the defined numbering pattern. ID's are forced to connector elements and properties after realizing them.
Connections can also be created using the Create Connection - Automatic tool, which is invoked by clicking the icon. Two automated creation approaches are available: auto creation by Proximity or by Tagpoint Matching.