You can assign connector accessories such as terminals, seals, plugs, and miscellaneous accessories, to a specific connector or to all the connectors in a route. You can further customize the parameters of a connector accessory for an individual pin.
You can define connector accessories in the Component Library of the Routing Library Manager, the From-To List wizard, and the Edit Connector PropertyManager.
You can assign either a terminal or a plug for a connector, but not both a terminal and a plug. However, you can select a seal for a terminal and a seal for a plug.
Data about connector accessories display in connector tables and circuit summaries for flattened routes, BOMs and drawings.
To define a connector accessory, right-click the route assembly in the FeatureManager design tree and click Edit Connectors 
(Electrical toolbar) or click .