If you’ve got a PVR set up to integrate with your Kodi library, for example, you could set it to watch only your PVR folder.You’ll find a few more things to tweak in the “Advanced” section.
By default, the add-on will scan your complete library, with all sources, but you can set it to watch specific folders instead.
Enable the “Clean Libraries” option to regularly remove all references to any deleted files from your library.
This will take a bit of time, so only enable this if you really do delete media files with some frequency.
The downside: this can take up a lot of system resources, and is occasionally unstable.
You can tweak things quite a bit, however, so head to the add-on’s settings and get familiar.