Pan tool

Pan Tool
Use the Pan Tool to move the camera (your view) vertically and horizontally. Activate the Pan Tool from either the Tool Palette or the Camera menu.
Keyboard Shortcut: H
Panning the View
The Pan Tool performs a pan operation. To pan using the Pan Tool:
Select the Pan Tool. The cursor changes to a hand.
Click anywhere in the drawing area.
Move the cursor in any direction to pan.
Panning While in the Orbit Tool (3-Button Mouse)
Press and hold the Shift key while in the Orbit Tool to temporarily activate the Pan Tool. Or, press and hold the left mouse button while pressing and holding the middle mouse button (scroll wheel) to activate the Pan Tool.
Panning While in Other Tools (1-Button Mouse)
Click and hold the Control, Command, and Shift keys simultaneously while clicking and holding the left mouse button to temporarily activate the Pan Tool (if you have only one mouse button).