From my question/discussion here -
When scanning a TV or Movies library, and no online information can be found for content, and no metadata is included within the media file itself, please, for the love of all that is known as boxed set “Extras”, please use the filename instead of, or in addtion to, defaulting to ‘episode number’ for the title of Specials
Unfortunately I have to close this down as it is a duplicate request
https://forums.plex.tv/discussion/186050/fetch-extras-titles-from-file-names-for-tv-shows
