How to set the Samsung s8 suspended window?

S8 supports multi-window split screen function, and the operation method is as follows:

1. Click the recent task key-click the "Lu" icon in the upper right corner of an application, and the application will be displayed in the upper half of the screen, and then select another application to display in the lower half of the screen.

2. Click the recent task key, click the rectangular icon in the upper right corner of an application, select the area to be displayed in the box in the picture, and click Finish. Just display another application in the window below.

Note: Some applications do not support this feature.