Yes, you can optimize cross-sections in the design add-ons (for example, steel design, timber design, and so on).
Optimization can be carried out, for example, for standardized cross-sections of a series or, for parametric cross-sections, for the width, height, and so on.
Select “Steel Design” and “Input Data” in the RFEM table window. Then, in the “Sections” tab, in the “Use Other Section for Design” column, select the “Optimize | Current Series...” option and define the parameters to be optimized: