2D View Controls
See also the Rulers, Guides and Snap Grid section.
Click and hold the Left mouse button and drag the mouse about to Pan - Esc to cancel mode
Shortcut: Click and drag the Middle mouse button or if using a 2 button mouse, Hold Ctrl + drag with Right Mouse button.
Mouse with Middle Wheel - Scroll wheel in / out
Mouse without Middle Wheel - Hold Shift + Push / Pull with Right Mouse button.
Click top left corner, hold mouse down and drag to bottom right corner and release. Clicking the left mouse button will zoom in, Shift + click will zoom out.
Zooms to show material limits in the 2D window
With objects selected
Zooms to the bounding box of the selection