Hi ,
Will there be a classic TileSet Editor at some point for UE4 Paper2D ? Means, you have a grid and can select and “paint” parts (squares) from a TileSet texture into viewport? That would be cool.
I have looked into Paper2D Experimental Version in 4.3 Preview and managed to do some stuff, but I am stuck with finding Paper2D Terrain Actor.
Another thing I noticed seems to be a bug due to image size. I have imported a 431x2357 px alpha layered png file into UE4, which contains all of sprites for Character ( Samus Aran from Super Metroid 
) and selecting single sprites from it with double clicking them in Sprite Editor is broken, most likely due to image size. I have to double-click way above actual sprite to get it selected. Sure, I could trim it down to seperate parts and avoid issue, but having a huge sprite sheet where all “animation” stages are stored, is kinda…handy.
In any case, I am surprised, what kind of features Epic wants to support with UE4. Not only 3D Stuff, but also oldschool sprite based 2D games. Keep up good work 