I am in argis pro and have shape file of all land masses in the world and have tranformed the entire layer to 3d. So, I am trying to make back ground of the map completely transparent so I can essentially see through the globe where water would be. Also, would like to see the other land masses on the other side, essentially the underside of the layer. Was going to try to change the layout background to hollow, but the background option was disabled. Any ideas?