Acer 4315 User Manual page 45

Press the left (1) and right (3) buttons located beneath the touchpad to
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perform selection and execution functions. These two buttons are similar
to the left and right buttons on a mouse. Tapping on the touchpad is the
same as clicking the left button.
Function Left button (1)
Execute Quickly click
twice.
Select Click once.
Drag Click and hold,
then use
finger on the
touchpad to
drag the
cursor.
Access
context
menu
Note: When using the touchpad, keep it — and your fingers — dry
and clean. The touchpad is sensitive to finger movement; hence,
the lighter the touch, the better the response. Tapping harder will
not increase the touchpad's responsiveness.
Note: By default, vertical and horizontal scrolling is enabled on
your touchpad. It can be disabled under Mouse settings in
Windows Control Panel.
Right button (3) Main touchpad (2)
Tap twice (at the same speed
as double-clicking a mouse
button).
Tap once.
Tap twice (at the same speed
as double-clicking a mouse
button); rest your finger on
the touchpad on the second
tap and drag the cursor.
Click once.
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