Sony PCG-SR17 Primary User Manual page 37

Using the Touchpad
Press the right button once. In many applications, this
action displays a shortcut menu of context-sensitive
choices.
Slide one finger while pressing the left button.
Move your finger along the right edge of the touchpad
to scroll vertically. Move your finger along the bottom
edge to scroll horizontally. (The scroll function is
available only with applications that support a
touchpad scroll feature.)
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