something like, i dont know whats the correct terminalogy but in a game called xonotic, there are some 4D maps, where its seamless and endless, you can run in circles around the map and its never ending. I guess thats what OP wants.
Has OP tried to implement tele himself?
Like create area3d to trigger the teleportation on body enter and that will change the player back to whatever you want it to be?
Or maybe OP wants to have like a view to through the portal and see like the next map room and then you can seamlessly go through it.
