At the moment hardcover allows me to add multiple dates for when I read a book. It would be really nice if this also allowed me to add a date to this list and mark it as not finished. Sometimes I start rereading a book but do not finish it. Marking the whole book as not finished would be wrong but also i still want to track that I started and stopped rereading it. Additionally it would be really nice to add a edition to this. In general I would love to handle not finishing a book similar to having read a book.