Preferences

Mouse

Mouse lets you tell the system how many buttons are on your mouse (through the Mouse type menu), and lets you set the Mouse acceleration and Double-click speed.

The Focus Follows Mouse setting affects the cursor and its relationship to windows on the desktop:

• Disabled (the default) means the frontmost window is live; clicking in another window brings it to the front and makes it the live window.
• Enabled means the window the cursor is over is live; with Enabled checked, click once in a window's tab or the thin outer window frame to toggle between applications.
• Warping causes the cursor to move to an application you're toggling to (the target app).
• Instant warping is the same as Warping, but faster; you don't see the cursor move to the target app.

A single-button mouse can emulate a three-button mouse: Press Control+Alt while clicking the mouse button to emulate the second mouse button, and Control+Option while clicking to emulate the third mouse button.