[DustyPorViva]

Well Stefan has implied that it would be very easy to add the ability to draw layers over players, but I've never heard more than that about it.

And ya, each layer is basically another level stored in the same file so it will increase the file size a lot. However, any idea what kind of bugs layers > 3 cause? Because Graal's theoretically supports infinite layers, by NW format and by script. Is it just not drawing layers over 3?

Also, you should add in the cons of using layers. Specifically the lack of support on the official editor tools, that will pretty much delete all layer data and break the levels if used to edit anything.