Someone else will have to answer these questions. I am not connected to BRL and all I've learned so far about B3D SDK is by deciphering the DLL and B3DViewer files, which briefly appeared on the forums few days ago. I must admit it reminds me of the times back in 70's when I was trying to figure out how to program HP's excellent 9845 computer, which we got almost six months before the docs arrived. Those were the joys of living in a communist country. But that's another story...
Barney
Barney