Archicad: how to make column and arch with shell tool

How to use shell tool to make a gothic arch

[@SeggyFlun]

A truly excellent tutorial. Thank you Ada.

[@user-zs5du3iw3n]

beautiful

[@senpercreatives1625]

great ada tnku

[@mimarmimar1015]

merciiiiiiiiiiii beaocoup

[@williamstrads]

kick in the arch door waving the 44

[@kijkrond1084]

Nice tutorial :-). Just wondering, isn't this possible with the beam tool also?