Think of games like Diablo or Starbound. Co-op games, not MMOs.
These games allow for different members of a party to be in different maps at the same time.
For example: Player A and player B are playing together on the same server (same server instance), Player A goes to, say, a portal and teleports to a different map, player B keeps exploring the previous map.
Note that i am not talking about big or infinite worlds, MMO-like seamless transition or anything of this sort.
Just straight up having multiple different maps/levels instanced at the same time on the server.
Is that currently possible in UE4 with networking the way it is, and if so - how?
And if not - what would be the optimal way to go about making it possible?