If possible, get a picture of where you want to put it. Using Heaven for an example, I take a picture and then add to that with a pencil, then pen, to draw what you are imagining without years of training at drawing.
If you look at the window and the lines for the horizontal and vertical lines, you can draw the rest much easier than from scratch, or at least I can so I think you will be able to as well.
They will open outward and are more like large windows than doors, but should work great.s:
Then we add the other parts to make the hidden stair way and bar…
So here is a drawing to show the wall first.