Steel Concrete Composite Column

Hi, I need to model a steel concrete composite column and assign it as property to columns in a structure. The columns shall be a concrete encased steel section as the example below. How can i define it ? The cross section tab in sofiplus gives the option for “composite” but am unable to figure out how to define the solid concrete column with an embedded steel section in it.
test

Hello

Please take a look at the attached post.

Best regards
Frederik Höller
Your SOFiSTiK Support Team