First, you must have a credential entry that points to the Credential Management System. The critical setting to enable is “Always Prompt with List”!
This is the trigger that allows our magic to happen. Now in a session definition, you must choose “Credential Repository” and then your credential entry created the step before.
Notice that a new action appears just below the credential selection drop down.
This will display our standard dialog to select a credential…
After you've confirmed your choice, the link is changed to the name of the credential.