OS X Yosemite: Change The Way Your Trackpad Works
If you use a
trackpad, there are several things you can do to change the way it works
and responds. For example, you can change how fast
the onscreen pointer moves when you move your finger across the trackpad
and customize the gestures you use with your
trackpad.
The options available depend on the Mac you’re using. For example, you can use three fingers to swipe only on some computers.
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Choose Apple menu > System Preferences, then click Trackpad.
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Select point and click options (depending on the Mac you’re using, you’ll see only some of these options):
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Look up & data detectors: Select
this option to quickly look up a word or do quick tasks with certain
types of data, such as dates and addresses, then
choose “Force click with one finger,” or “Tap with three
fingers.”
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Secondary click: Select
the option, then choose “Click with two fingers,” “Click in bottom
right corner,” or “Click in bottom left corner”
to secondary (or Control) click items on your screen.
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Force click and haptic feedback:If
your trackpad supports it, force click an item to take action. (To
force click, press firmly until you feel a deeper click.)
For example, force click a file in the Finder to show
it in a Quick Look window. With the checkbox selected, you also feel
tactile feedback when aligning objects in
some apps, like Preview.
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Select scroll and zoom options (depending on the Mac you’re using, you see only some of these options):
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Select more gestures (depending on the Mac you’re using, you see only some of these options):
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Swipe between pages: Select
this option, then choose “Scroll left or right with two fingers,”
“Swipe with three fingers,” or “Swipe with two or
three fingers” to move between pages in a document.