Import Maps as tiles

We have a good sized collection of community made maps. However, maps are still limited by the number of assets they can use, and enlarging assets to make less required can only go so far. I think it would be nice if we could convert maps into a single asset/tile; for reasons that I believe to be obvious, the converted map would have to remove all windows, doors, and miniatures from the map. However, including such a feature would allow not only faster build times, but also even larger maps.