Create Session with Dedicated server on different ports?

I have one main world, and I would basically want to create multiple sessions for instances where the server would be the host. But since the server is already hosting the main world and can’t host both (correct me if I’m wrong), I would need to create another dedicated server which would just be on another port (for example port:7778).

My question is, how would I do this since I can’t add a dedicated server on the PlayerController of the Session Node.
Or is there another way to do this than using multiple dedicated servers on different ports?
Would preferably use blueprints.