To bring DragThing to the front when the mouse is moved into a certain area of the screen, check this box.
Click on the small Desktop to set which area of the screen is used. You can choose corners and whole sides of the screen as the hot spot. With multiple monitors, only the outer corners of the desktop are taken into account.
Delay before coming to front
To change the delay between moving the mouse into a hot spot and DragThing coming to the front, drag this slider.