Stop all automatic Library scan

Please, add the option to stop all automatic scan. I already have the scan frequency to Never.

But:

Every time I reload metadata of a tv series in a folder, all other folders are scanned. This is annoying for me, because I don’t usually have all my shares on: One share for TV shows and another one with several folders for movies. When I watch TV Series I don’t turn on the movies share.

If I need to scan a folder I will hit the Scan button.

Can this be added, please?