To view Virtual Tours

Place the mouse pointer into the virtual tour window.
Click and hold the left mouse button and move the image left and right
by moving the mouse.
Zoom out by selecting the - button on the viewer tool bar
and clicking and holding the + mouse pointer in the image.
Zoom in with the + button the same way.

To pan the full image (without having to move up or down)
press "Z" on the key board