Wall and Floor Re-Skin Tool

I would suggest a tool (pop-up maybe) that allows you to add a skin to current or future map item. For Example, Floor Tiles, you add your tiles from the current list to your dungeon, you group them as 1 item, then click them and choose maybe "Add Skin". Once chosen the files open up and you can choose a jpg for example and it applies it your group. Once chosen you can change the skin, delete the group etc, but you cant "ungroup" the group. i would request this for walls and floors. This is how I would allow use of a 2d map in the 3d environment. Basically we are doing it now with minis to add different texture to floors.