This macro, beams IPE HEA HEB HEM HLS ILS IPE
Cellular steel beams with circular openings
Castellated beams with hexagonal openings
Castellated beams with octogonal openings
AND MACRO PROSTEEL END PROSTRUCTURES DRAW PARAMETRIC CASTELLED BEAM WITH SINUSOIDAL OPENINGS ANGELINA ACELOR MITTAL
see video https://sites.google.com/site/mclisp/alveolari