Always, well mostly, willing to oblige.

Directing you to the Bezier Help is the best way I can think of assisting you, mainly for the reason that this function requires much time on the part of the operative to get a grip on details. I would NOT take on the task of explaining it here when there is more than sufficient explanation elsewhere.

Now, if you get into trouble with Bezier, then sure, come back here and ask precise questions. I'm sure there are one or two or three chums here to assist. Yeah?

Regards

Grazie