This may be a silly question but I've looked and can't find any info on it.

I'd like to have multiple paths in one of my projects so reaching a certain exit leads to its own map, and/or a submap that leads back to the map you came from (like how you'd do going through a pipe in Mario, he goes underground and resurfaces)

Not a major concern but it's simple enough an idea that I figured someone must have done it at some point