On the Note 8 you can save 'multi window' layouts and save them as shortcuts so that you can open app pairs on a single tap.
From the Multitasking menu you can open two apps at the same time (cutting the screen in half by default) and use them side by side. This shortcut allows you to do that with two apps of your choice (as long as they support multi-window mode) without having to open one app, tapping the multitasking button, selecting multi-window and opening a second app.