This resource created by Phandroid.com Contributing Editor Kevin Krause as part of an Official Series of beginner tutorials for Android Forums. The Galaxy Note 4's Multi Window mode can be set to run in either pop up or splitscreen mode. Enabling either is done through the Settings menu after enabling Multi Window. Quickly do so by following these steps: From the Settings menu navigate to "Multi window" under the "Sound and Display" header Make sure Multi Window mode is enabled by toggling the feature to on Check the box next to "Open in split screen view" Launch Multi Window mode by long pressing the back button. If you have enabled the pop-up view shortcut, you can launch split screen apps in pop-up view by swiping down diagonally from either corner of the screen.