Finally I could create some solid scene using this tool. I like it. However, I noticed a big memory problem when I created 3/4 layers like in your video. Unity simply crashes and I cannot do anything - except a reboot. Respectfully there is a lack of stability. For information, I use Unity 5.3 on Win10 64b. I am sure that the next releases will be more stable. However, at this stage - and unfortunately with regrets - I cannot work efficiently with this tool. Please don't give up. I will be happy to help you testing the updated releases. I wish you the best. Thank you ++