Adding repo sources for tonnes of addons

Fairly straightforward way to have direct access to thousands of add-ons dirext from Kodi

from Kodi home screen, select 'System', then from the submenu 'File manager'. You should come across a screen that has a list of locations, and at the bottom it says 'Add source' (Root A and Root B will both do the same thing).

You get a window that pops up asking you to add file source. Here are three of the biggest source locations (fusion, xfinity and super repo), and the fourth (totalxbmc) contains an addon that enables add-on installing from the addon:

http://fusion.tvaddons.ag
http://xfinity.xunitytalk.com
http://srp.nu
http:i.totalxbmc.tv

Just copy and paste or type the source location underneath the heading 'Enter the paths or browse for the media locations', then in the box under the heading 'Enter a name for this media source', do just that (any name you like to identify the source). Repeat from the 'Add source' step for each location

Once you have done that, you can browse for repositories/add-ons in the new locations by (from the home page) selecting 'System', 'Settings', 'Add-ons', 'Install from zip file'. On this page you can see the recently added sources by the names you chose for each one. Note that across these locations, many of the apps will be duplicated, but it doesn't cause any issues.