The built-in touchpad is a pointing device that senses movement on its surface. 
This means the cursor responds as you move your finger across the surface of 
the touchpad. The central location on the palmrest provides optimum comfort 
and support.

Touchpad basics

The following items show you how to use the touchpad:

Move your finger across the touchpad (2) to move the cursor.

Press the left (1) and right (4) buttons located beneath the touchpad to 
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.

Use Acer Bio-Protection fingerprint reader (3) supporting Acer FingerNav 
4-way control function (for selected models) or the 4-way scroll (3) button