Maybe by trying I found the solution to transform any window object into an object with the same characteristics as the one I created, a simple solution but which seems to work even with complex objects such as my movable shutters.... POSSIBLE?????
I simply imported the movable shutter as a door/window and I INVERTED THE DIMENSIONS, WIDTH AND DEPTH....... try and give me your result.....if it were it would be possible with any door/window object to just drill partially a wall????

You can use any window to create an object like you did. But you don't do that by swapping width and depth. You rotate the object vertical in the 2Dview and export, then import again as door-or-window. The rotation swappes the 'technical' sides with the front and back (the thicker dark line you see in the 2Dview when an object is selected). You manually place the object like you did before. Deformations will remain and work as before.

I don't see how an existing window is usefull because it will become a window that looks inside the wall. I can see a use for creating a closet or cabinet that you can sink into the wall with an opening door. Like adding a door to the object you already have. When you open the door you can see the inside of the cabinet. Might look good with glass doors closing the indention.