There are a number of Kodi repositories available on the internet which give you access to a variety of different content. This guide shows you how to add them to your Kodi config.
A video showing these steps can be seen at the bottom of this post
Step 1: From the Kodi main menu, scroll to SYSTEM and then underneath choose FILE MANAGER
Step 2: This screen will show you locations that Kodi uses to access repositories. You need to select ADD SOURCE. Sometimes it requires a double click on ADD SOURCE to get the window to pop up
Step 3: Using the on screen keyboard, or a physical USB keyboard air mouse. Type the URL of the external source you want to add an then select DONE
Step 4: You can give the source/repo a name of your choosing by scrolling down to ‘Enter a name for this media source’ field. Once done, click on OK
Step 5: Now back out in the FILE MANAGER you will see your newly added source. Press the back button on your remote to come back out to the Kodi menu screen
Step 6: To install the repo from the source you’ve just added, choose ADD-ONS from underneath SYSTEM
Step 7: Now choose INSTALL FROM ZIP FILE.
Step 8: Browse to the source you just added and select the repo within it which will be in the form of a ZIP file.
Step 9: Once you have selected the repo, it will install into Kodi. Press the back button on your remote to come back out to the ADD-ONS menu and choose GET ADD-ONS
Step 10: Browse to the repo you have just installed or simply select ALL ADDONS to see everything that is available.
Step 11: Then choose the add-on you want to install. From the pop up menu choose INSTALL
Step 12: The add-on will appear in ADD-ONS with ENABLED next to it. All done
The following video demonstrates these steps in real time