Allow a Toggle for "Always Unmatch"

Please allow a default setting to ALWAYS leave titles unmatched for a specific folder

I have a large number of personal videos. It is absolutely annoying that I have to go back and click on the movie to “Unmatch” it so I don’t have to see some obscure movie title picture and description of my personal movie that may have the same name.
Again, I am not asking this for any purchasable title, just for stuff I made and have on my HD and would like to watch through Plex.
Thanks!

Such an option exists… you can set your library up as type Other video. No matching involved with that library type.

The same will happen if you set the agent of a Movie type library to Personal Media Movie – which will basically make it an Other video type library.