PEN WINDOW
Pen Window is a feature that comes with the S-Pen that comes on top of the interface of the main window. The Note 3 and it’s beefy processor can process multitasking on demand. Just pull out your S-Pen, choose Pen Window, then draw a rectangle on the screen, choose an app to run and it will populate that rectangle space that you just drew. And by the way, you can still resize it if you want.