Movies editing list

If the target of this beautiful app is to give a comfortably support when you search and want to see a film, the best way is to allow the user to organize the archive in his own custom way. For example:  

The app decides how and where to scan on my PC to identifies movies an add them to a library.

Is possible to add manually the right path and not others to decide what I really want to see on line or not?

Or making possible to rescan from the beginning like the first time but with my inquiring conditions?

That's all for now, thank you very much to answering me and have a nice day!

Ivan