Specifications

Multi Window: Using multi window applications and view(2)
5. While using Multi Window
applications, select an application
window, tap the circle between
the application windows,
and then use one of the following
: Open a list of recently-used applications in the selected window.
: Switch locations between Multi Window applications.
: Share items between the application windows. Drag an item to
share from one window to another. Some applications may not
support this feature.
: Close the application.
6. Tap the switch application of first.
It open a list of recently-used applications
in the selected window.
Choose the application you want.
7. Tap the switch window of second.
It switch locations between multi window
applications