PROBLEM ADDING TO LIBRARY

Please be gentle with this newcomer to Kodi.
Please believe I’ve searched this issue, but still can’t find the solution.
It’s a simple one . . . I know HOW to create a library, and setting up the path and all, but I just cannot find any “add to library” options for either TV shows, Movies, or Sports Channels.
Add to favourites option . . . Yes, no problem, but could someone PLEASE tell me how to actually add to the library.
Running Basic Jarvis on Windows 10 with no fancy skins or anything.

I’m sure the answer will be in the forum somewhere, but I just can’t find it.
Thanks in advance . . .

Terry