Rutra, what kind of mesh splitting are you talking about? because I just looked again and it says in the list of 'complete' features "Mesh splitting by material." That's the only type I know and used. Is there something else?

What is a flat interface?

"I paint that which comes from the imagination or from dreams, or from an unconscious drive. I photograph the things that I do not wish to paint, the things which already have an existence."
Man Ray, modernist painter
http://artpearl.redbubble.com/