Hi,
So I have two landscape levels. One that’s a forest and then an underground cave level. I want these levels to be interconnected and do it efficiently with high performance of course. What would be the best way to go about connecting these two levels and possibly other levels if I were to create more into one seamless world. The way that I’m having the transition between the forest level to the underground is using an elevator that isn’t really moving down but instead has rocks in front that move up and give the illusion of it moving down. I want to find a way to interconnect these levels with this sequence. Any help towards this would be greatly appreciated!
Hey @Zapking9224!
What you’re looking for is called “Level Streaming”. Basically, you’ll have one “Persistent level” that the elevator would be on, another for “outside” and another for “in cave”. Then you’ll unload Outside and load In Cave while going down the elevator. 
Here’s some documentation, and do a search for “Level Streaming” if you’d like some videos as well to explain how to do what you’re trying to achieve