The image you posted shows a 3-point resize action. Not a "reposition" action. You are resizing the window, not repositioning it.
Draw a double hung window, for example. Grab the
redefine window tool. Hover over the center grip. Notice how all four corners turn to blue squares and the center grip is a red square? This allows you to move the window along the wall without resizing it.
You cannot do this if the window is set as "None", as I've described above. The center grip never turns to a red box, and the four corners never all turn to blue squares.