[Korzic]

To turn off use the Customize Main Menu option (submenu available in the Settings item). Use replace function, choose None, and done, excluded.  

But I'm not trying to exclude the Concert menu entirely.  I could literally just turn that off in the Customise Main Menu option.

I want to separate the Concerts Video Files out of the Movies Video Files.  I cannot find the options to define contents of each menu.

When it comes to the Concerts menu, I cannot get my Concerts to show.  I physically have to navigate back from an empty menu to the Tags menu then back again to Video Sources then forward to Playlists then to my Concerts Smart Playlist.

Concerts Menu is Empty <-- Tags <-- Video Sources --> Playlists --> Concerts Smart Playlist.  

Are you using playlists for everything? I don't.  I just have my concerts in a separate folder from my movies and added them via path. Done... no problems. 

No.  Concerts is entirely separate (and on separate HDDs)