2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32

33  34  35  36  37  38  39  40

How to Resize Viewer Window Box:   

            Smaller: Click and Hold Mouse Button While Moving Left.

            Larger: Click and Hold Mouse Button While Moving Right.

How to Zoom In or Out:

            Smaller: Click and Hold Mouse Button While Moving Down.

            Larger: Click and Hold Mouse Button While Moving Up.