How to use keyboard shortcuts to make a split screen on macOS, iPadOS, Windows and Chrome OS. Lots of tasks would be easier if you had both apps on your screen side-by-side. For example, you can copy text from a website, then paste it into your Notability document or an email.

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Windows:

Press Windows and either the left arrow or right arrow to move your app between different parts of the screen.

Then hit Windows-Tab to switch to the other app. Use the above keys to move the 2nd app into the position you want.

it is MUCH faster than dragging windows around with the mouse.

iPadOS:

If you have a keyboard designed for use with an iPad, press Globe key plus ctrl plus either the left arrow or the right arrow.

Then switch the second app with a tap or the App Library. Once selected , the apps will be onscreen next to each other.

Press the three-dots-menu for even more option. {CLICK HERE for more information about that.]

ANOTHER IDEA:

If you have a REALLY LONG document, open the same document up in two windows. That way each side can be set to view different parts of the document – that might be real handy when reading or writing.

MacOS:

The easiest way, according to the article, is to use a 3rd party app called Magnet. There is a manual way to do the same thing, according to these instructions.

ChromeOS:

alt + [ moves a window to the left (and, if pressed again, around the center of the screen), while  alt + ] moves a window to the right (and, if pressed again, around the center of the screen).

Original Source: https://www.techrepublic.com/article/how-to-use-keyboard-shortcuts-to-make-a-split-screen-on-macos-ipados-windows-and-chrome-os/