Chat gpt created the question? That’s a new one. I thought people used it to get answers. Any particular reason you don’t just ask the question directly? I may just be confused though.
Anyways, since construct is a 2d engine you can use the shadow caster behavior to do shadows. But since you write walls maybe you mean on a 3d shape? In which case it’s a pain to do since the engine isn’t built for it. But search the forum and you can find some complicated solutions of sorts.