TV Shows "Extras"

[troothdotcom]

I looked on Jellyfin . org how to set up my folders for TV shows and followed their guide (below) and It didn't work. Instead of separating the specials from the regular episodes I instead got more episodes added to the regular season with most of them sharing the same title. I literally followed the guide below so I'm wondering has the guide below worked for you guys or how do you go about setting up your extras? Also I used the search feature but all the results showed up as empty when I tried to open them. 

Thanks in advance for your help.

Shows
└── Series (2010)
    ├── Season 01
    │  ├── Episode S01E01.mkv
    │  ├── Episode S01E02.mkv
    │  ├── featurettes
    │  │  └── Some Featurette.mkv
    │  └── interviews
    │      └── Interview with the Director.mp4
    ├── Season 02
    │  ├── Episode S02E01.mkv
    │  ├── Episode S02E02.mkv
    │  └── behind the scenes
    │      └── Behind the Scenes.mp4
    └── extras
        └── Fantastic Extra.mkv