Samsung SM-G930W8 User Manual Addendum page 19

Basics
Using additional options
Tap the bar between the app windows to access additional options.
Sharing text or images between windows
Drag and drop text or copied images from one window to another. Tap and hold an item in
the selected window and drag it to a location in another window.
Some apps may not support this feature.
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Switch locations between
app windows.
Close the currently
selected app.
Switch the selected
window to a pop-up view.