I would like to remove several books from Calibre, but without deleting them from the folder. The way it is now, I have to use Explorer to remove the files from the Calibre-folder before I remove them from the library. In similar music organization programs, for instance Windows Media Player I can chose whether I want to delete only from the library, or from both the library and the disk. I would like to have that option in Calibre as well. It may be there, but I have not found it.