The Pan (manual pan) button will allow you to move around within the current map window in any direction. Once you make this the active button move to the area on the map you want to start panning from and press/hold down with you index finger on the mouse button to move the map around. Release the mouse button to redraw the map at the new position. Continue the process until you get to your desired area.

After you have moved to your specific area on the map you can use a combination of the Zoom In   or Zoom Out  buttons until you are satisfied with the map orientation.