I work with Jay and he a programmer (you would know him from ZKL) and he has looked through everything we can access without decompiling the program and neither of us found anything. As I mentioned elsewhere I used a trick. For a complete terrain change that does mean that it cannot be used in exhibits as it would think it was the terrain base you used and you can only place it certain ways. Colour changes work weirdly too. Here is a water colour with the "blend off" and "blend on" controls ena