Had a slight mishap when merging book formats and accidentally wiped half of a book's metadata fields. I have a recent backup of the OPF. Is there a way to somehow re-attach that to the book without re-adding the book from a directory? Dragging and dropping the OPF file just tried to add it as a format....
I do have a full backup available if re-adding is the only option (I use differential backups to save space), but it's heavily compressed and a bit of a pain to use just to restore one folder.
