If your mouse has a scroll wheel you can zoom in by rolling the scroll wheel away from you, zoom out by rolling the scroll wheel toward you, and pan by holding the scroll wheel down and dragging the map to a new location.
If you’re using a laptop touchpad, you pinch to to zoom and press and hold/slide to pan. Note that you need a “middle button” set up on your touchpad for this shortcut to work.
For more information, see Moving Around a Maptitude Map.