Using Multi Window on my Samsung phone
1. Touch the Recent apps icon.
2. Scroll to the desired app (E.g., YouTube).
3. Touch Open in split screen view.
4. Touch another app to open in Multi Window (E.g., Chrome).
5. Both apps are now shown in Multi Window
6. To close an app, touch the line on the desired window (E.g., Chrome).
7. Touch the X icon.
8. The selected app has now been closed.
Note: Screens, functions and options shown in this guide are for reference only and may only be applicable to certain models of phone.