How to use the docking function of windows 10 system?

How to use the win10's snap function

1, Windows 10 also improved the multi-screen window snap, now drag and drop to the edge of the screen will automatically snap, as shown below

2. If you have already attached an app, when you are attached to the second one, the system will automatically list all currently open applications for the user to select the second application to be applied to. As shown below

3, in addition to win8's abutment, win10 system can not only use the modern app to rely on, using traditional desktop applications, even the system's own window can be used as a close Object