[Improvement request] Option to make adding files to playlist non-recursive.

[alexcom]

I have "Add other files in the same folder if adding a file" option enabled.
For some artists I have separate tracks in artist's folder along with directories containing albums, EPs etc.
If I want to listen to just one of these tracks I add it to playlist and because of the option enabled the entire discography is loaded into playlist. Please make an option to make this non-recursive, i.e. load only files directly in this folder.

Cog Version 2848 (2848-g42ea8249)
macOS 13.5.2