OS X Mountain Lion: Set Mission Control shortcuts
You can designate keyboard and mouse shortcuts to hide, show, and switch between windows.
- Choose Apple menu > System Preferences, and then click Mission Control.
- In the Active Screen Corners section, open any of the pop-up menus and choose actions to perform when you move the pointer to a screen corner.
After you’ve set an active corner, move your mouse to that corner of the screen to see the result.
- In the Keyboard and Mouse Shortcuts section, open the pop-up menus to choose keyboard shortcuts, mouse shortcuts, or both.
If you have a multiple-button mouse, you see two columns of pop-up menus in the Keyboard and Mouse Shortcuts section.