Dragon is not perfect. All that Dragon allows you to do is to drag the frontmost screen down, so that any screen behind it becomes visible. Releasing the mouse-button again will pop the screen back into its original position. Pressing the right mouse-button while dragging will beam you to the screen shown behind or cancel the drag depending on your settings.

It's not possible to have th dragged screen stay at the dragged position. This commodity simply is good for having a quick look at what is going on on the screen behind without switching screens.

Dragon works best when all screens have at least the same colour depth.