Hello @Haqiqi_alireza and welcome
yeah probably you only have one loaded structural framing type in your project, maybe…
Hello @sovitek , thank you for your reply. no, I have different profiles, but I don’t know how to add a specific profile for each element. because I can create all the beams with one function and I can only use it to select a specific profile for all of them.
FamilyType.ByName might be more useful, assuming your family types align:
https://dictionary.dynamobim.com/#/Revit/Elements/FamilyType/Create/ByName
yeah sure, thats best
if aligned




