Tile Mapping

https://blogs.unity3d.com/2016/06/13/2d-experimental-preview/

Have these things come out of experimental yet? If so, is there documentation on them so I can get up to speed? Thanks for your time!

Edit: This is NOT what I am looking for.

I want the functionality shown in the first link.

Nope. Keep in mind that features in experimental preview may never be fully developed.