How do you build doors and windows at fortnite?

So I don't play fortnite that long and don't know how to do it. I just know how to build normal walls and stuff

I play on the ps4 and it says press circle to edit but nothing else says there.

When you have pressed the circle, press the squares (doors 2 squares one above the other) (window 1 square)) and then press the button to confirm

(I personally hate fortnite)

This works as follows:

You can build windows / doors by pressing the circle on an already built wall. So you can edit the wall and if you choose 2, 4 corners down from the wall you have a door. If you choose one (no matter where) you have a window.

It's a little hard to explain, but I hope you understand.

Thank you understand