Three-and-four-finger touch gesture

To do this Gesture
Show all open windows. Swipe with three fingers up.
Swipe with three fingers up to show all open windows
Show the desktop. Swipe with three fingers down.
Swipe with three fingers down to show the desktop
Switch apps. Swipe with three fingers to the left or right.
Swipe with three fingers to the left or right to switch apps
Switch desktops. Swipe with four fingers to the left or right.
Swipe with four fingers to the left or right to switch desktops