I was recustomizing my plot today and I wanted to use the shadow tiles and walls for some added effect. Seems I didn't have the correct expansion to use the shadow and crystal items. Well I decided to fix that and bought the latest expansion with the extra character slot and house storage space. After I put in the code I had the extra storage and the extra slot but I still couldn't use the shadow tiles nor the shadow walls. What expansion do I need to buy to use the tiles? Can someone link the exact expansion I need to buy to use two different tiles?