I would assume that everything would go into the exports folder if you're installing maps unless the instructions says otherwise.
Well, you have to keep in mind that some objects ( if you installed maps before and are wanting to use them again ) aren't compatible with the New FH. So in order for the maps to work, not only do you need to put them in the correct folder ( exports , textures, what have you ), you need to be sure that the map would be compatible.
It might show up as the portal, yes ( even though the portal is really transparent ), but the moment you go in, your game might crash instantly no matter what you do.