[keycloak-user] Multiple Identity Support?

Hi Is there support for handling multiple identities for a single user?  If so, is there a video or write up explaining how this is handled? Example use case: You have your user profile (with multiple Identities) that is associated with KC.  KC is connected to three systems.  When you log into System 1, you use Identity A, and when you log into System 2, you use Identity B, and When you log into System 3, you use Identity C. The different identities are due to the need for the user wanting to share specific information depending on the system they are logging into. This openID connect video has a great intro that outlines the use case for multiple identities: https://www.youtube.com/watch?v=Kb56GzQ2pSk Thanks. Stephen