What is the role of windows10 gesture function?

windows10 technology preview version, added a lot of features, and currently only open to developers to upgrade, after the system upgrade, many users exposed the new features of win10. What can be used to achieve the gesture function in win10?

windows10
1. Display the desktop
Three fingers simultaneously slide down on the touchpad, all windows are minimized, and the desktop is displayed. Equivalent to the mouse click on the bottom right corner of the desktop.
2, display all windows
After performing the above actions, all windows have been minimized, three fingers slide up on the touchpad, and all windows resume display. Equivalent to clicking on the bottom right corner of the desktop again.
3, task view
directly slide the three fingers up without executing the display desktop, the task view appears.
4, Windows Flip
Three fingers swipe left or right to make a selection window, release your finger to determine the selection, and you can switch the virtual desktop. Equivalent to Alt+Tab.