Zooming:

WINDOWS - then choose Zoom In, Zoom out or Show All. MACINTOSH - - then choose Zoom In, Zoom out or Show All.

Moving left, right, up and down:

Press mouse button and while keeping it pressed, use the to drag the map to a new position.

Changing image quality:

WINDOWS - then choose Low, Medium or High. MACINTOSH - - then choose Low, Medium or High.