... I think it is something new !! In fact, here is the first
try about a macro I did this week-end. It is a "profile" which one
turn around the Y axis. But only the radius of the "tor-like" shape can be
changed... Unfortunately!
It would be better to make a macro like this, which one would allow
one to change the shape of the profile, too. For now, this macro
could be used as "letter_shape", or as "column_support" (the base)
or, as the edge of a roof... Anyway, below is my first guess about
this macro ( in fact, it is one of my first macro )

Alex, Quebec, Canada