Calibre import (Add Books) does not pull any part of the folders path other than file name
(path blind) for use as metadata if you are using that Add option
You should look at the Preferences: Adding Books
My REGEX template has:
Code:
(?P<author>[^_-]+) -?\s*(?P<series>[^_0-9-]*)(?P<series_index>[0-9]*)\s*-\s*(?P<title>[^_].+) ?
as one of the options (Note: I may have used this sometime or in may be a pre-loaded to be in the History. Check the pull-down or roll your own.)