Setting apps as favorite apps can be helpful when you have a lot of apps and you want to quickly switch between a few apps within your app. When an app is set as a favorite app the app will be located within a favorite section that is displayed at the top of the app selector screen.
Setting the app as a favorite
On the app selector page simply swipe to the left. A partial swipe will reveal the favorite button allowing your to tap on the button to set it as a favorite. You can also do a full swipe to the left to set the app as a favorite.
Removing an app as a favorite
To remove an app from the favorite section simply swipe left on the app within the favorite section that you wish to remove.