Buildings variables

Hello everyone, I hope this message finds you well,
I’m working on multi-objective optimization with 3 objectives, and I’m trying to create different variables among its building variables, including walls and windows construction sets (4 different types). Can someone tell me how to create this in Grasshopper? or just tell me the name of the component that I have to use I am a beginner.
Best regards

Have you watched the tutorial videos?