title: ThreeJs create object from another object
body: <p>I have an object created from importing an .obj 
  I want to clone this object and give it it's own coordinates.
  To be more precise, I have a wall, for which I attach another object (a window) as a child. It all works fine when dragging the window along the wall. Now, when I want to clone the wall and rotate it 180 degrees, dragging the child along it's parent goes exactly the opposite way from the mouse movement.
  I would like to reuse the same obj wall for all sides of my building. </p>