Use the Properties view to edit links. By default, the Properties view is displayed.
To open the Properties view to edit a link:
From the menubar, select Window > Show View > Properties.
Select the link in the Diagram view.
Use the fields that appear in the Properties view to edit the link.
To improve the usability of a diagram, you can add textual labels to the links. Three labels can be associated with a single link: the link label itself, a client label, and a supplier label.
To add a link label:
Right click on the label and select Properties from the context menu.
Edit the "label" field in the Properties view.
To add a client/supplier role label:
Right click on the label and select Properties from the context menu.
Edit the "client role" or "supplier role" field in the Properties view.