Streamed scenes in standalone build

I'm trying to find a way of having scenes being able to be put into the "StreamingAssets" folder in the exported standalone build, for easier update of the scenes, aswell as easier adding new scenes to an in-game list of "scenes" in the StreamingAssets.

You could also think of this as a sort of, map folder where I store all of my maps/levels, and then directly from the game itself, search if any scenes is in the folder, and then can be able to switch to them.

Any ideas? Not asking for a directly solution with code or anything (I wouldn't mind ofcourse), but just a general idea of how I would go about doing this.