What to Know App Library > long press the app > tap Add to Home Screen. You can also search for apps from the App Library and add them to your home screen from the search results.

Remove an App: To remove an app from the dock, tap and hold the app icon, then drag it out of the dock. You will see the app icon move back to the home screen or App Library.

The iPad's Dock offers a convenient spot to house favorite and recently used apps. It's gained a few new tricks since its debut in iOS 11; here's how to customize the Dock to your needs.

In that window, select Add to Home Screen. You can also re-add the App Store by pressing and holding the app in the Library page, then dragging it directly into your home screen.