Hi Michael,

Thank you very much for your thorough reply, as usual.

I understand your point of view, and....pity...i'm not a student, but based on everything I've seen so far,
i can tell you that i want to plan a future purchase of the next V4 version of this great software,
or, at least, i hope i can do it.

I'll keep on reading this forum 'cause it's also like a cornucopia of plenty and useful information
for 3d nurbs modelling in general, that i can also try to do into Rhino.

Nice day and good job with your rewriting of the V4 version !

P.s. I'm glad to know that you are planning something to handle a sort of plugin galley :)

Marco.