Woodz Warper

https://i.imgur.com/SPBHwAb.png

you need 4 things in your map: a trigger called seamlesswarp, a trigger called seamlesswarpto, an empty called WarpFrom, and an empty called WarpTo. the triggers shouldnt be in the same spots relative to the areas they're in. think of how a source engine game switches maps. if you hit the map switch trigger, when you get to the new map, you have to move backwards a bit before hitting the trigger to switch back. the WarpFrom and WarpTo should be in the same spots in their areas relative to them. so if possible, you can vertex snap them to the same vertex on a piece of gemetry that both of the areas share. then all youll have to do is set the plugin as a dependency for the map. pic above for setup example.