I am sorry, but my question was different. If I have directory with many files and many large subdirectories in it, how do I exclude some of these subdirectories, while still scanning all files in that directory and remaining subdirectories (using predefined scan “Select folders to scan” and without having to go to “Settings” and “Exclusions” every time I do that)? There are lots of these exclusions and they are different every time.

I use “Select folders to scan” menu, click Start, and select some directory from open directory tree. Now I want to exclude some sub directory of that directory (i.e. some directory which is in the originally selected directory). I click at the plus sign next to selected directory (directory with check mark), and erase check mark next to some sub directory of the originally selected directory. At the moment I erased check mark from any subdirectory, files in the originally selected (containing) directory are not selected any more, and will NOT be scanned. If I am right about that, that is nonintuitive and undocumented behavior. So, my question was what are the rules of selection when we have arbitrary combination of selections on several levels of directory hierarchy?

Also, how do I scan only files inside some directory (on that directory level only), and not files in any of the it’s subdirectories (because it may take many hours to do that)? Not one file in directory, but all of them, including some I possibly may not see in Windows explorer. If I select any directory, it will always scan all of its subdirectories also (if exclusions are not defined in Settings, and that is extremely time consuming to do every time for ALL subdirectories of the directory you wish to scan at the moment).