Why so complex to add source?

I’ve got a really simple set up. It’s a Raspberry Pi running OSMC and with a 2Tb USB drive plugged directly into it. I’m really liking it but have a question about how to approach adding some TV series into the library.

At the moment I’ve got a folder called MOVIES which contains everything. That’s working fine and dandy.

In the same folder on the USB drive as the MOVIES folder there’s another folder called TV SHOWS. What I want to do is to add the contents of this folder into the library but specify that everything in it is a TV show, consisting of various series/seasons.

I cannot for the life of me work out how to add the TV SHOWS folder. File Manager just shows up the name of the USB drive. If I go to ADD SOURCE and browse to the TV SHOWS folder on the USB drive (inside /media) and add that, it shows alongside the USB drive. It just doesn’t seem right to me, and it’s not allowing me to specify the type of content.

Where should I be going to get my TV shows added into my library??

Videos>files>files>Add Videos