Asus UL50VS - Manual (Page 52)

52 Notebook PC User Manual
Two-finger scrolling - Use two fingertips to slide up/down/left/
right on the touchpad to scroll a window up/down/left/right. If your
display window includes several sub-windows, move the pointer on
that pane before scrolling.
Scrolling vertically Scrolling
horizontally
Two-finger pinching - Moving two fingertips apart or together on
the touchpad to zoom in or zoom out.
Zoom in Zoom out
Three-finger tapping - Use three
fingers to tap the touchpad. This
action mimics the right-click
function of a mouse.