A reference sheet which is.... 600+ pages!! I think someone forgot what the name "reference" usually means. Like - we used to call something 300+ pages a manual :) Then Microsoft came along and we had to call anything 30+ pages a manual... now we call 600+ pages reference :)) Hope they didn't have "quick" next to that also :)) Did you get that from the Rhino homepage? I'm sure around there somewhere is the reference PDF... if not - I would be interested, since it would help explain stuff that right now I'm using the Rhino PDF manual to explan... tracy-ann