Favorites List On Kodi

First you search for your favorite show within the add-on itself

OR go to ALL ADDONS tab, click on it to see all the installed addons, go to the one you want added to your favorites tab.

Once you have found the show or Addon. Using your remote, press the menu button and a screen will appear.

This screen will give you several options, including the option "add to favorites."

Now back out to Kodi's home page, scroll over to favorites tab, click on it, and you will see your favorite list.