Select the product you added. Do not lift up on the mouse key.
While holding down the mouse key, drag the product to the point you want it to appear in the list. You will see a solid black line that moves up and down as you move the mouse. The black line indicates where the product will be placed in the list.
Lift up on the mouse key when the black line is in the area where you want the product placed.
The list will redraw and the product will appear in the new place in the list.
