@amosbastian I see this rules, But I didn't tell about design. I told about Freecad command, using Freecad and create a solid object with different mode in FreeCad. Design is only examples. If you want to tell command in Freecam, you must draw or design a solid object. Also Freecad is meaning of Free 'C'omputer 'A'id 'D'raw. So it is draw , i think it's not design. This is draw.
You can watch my video, also you can read my stage of ''what will I learn''