I'd like to see an ability to track availability of short stories (and even novels) in different collections/editions. For example, there is Doctor Who short story Nothing O'Clock (https://hardcover.app/books/doctor-who-nothing-oclock), which was originally published in e-book form and then subsequently in hardcover anthology 11 Doctors 11 Stories (https://hardcover.app/books/doctor-who-11-doctors-11-stories) and its updated and expanded editions like 12 Doctors, 12 Stories (https://hardcover.app/books/doctor-who-12-doctors-12-stories), Thirteen Doctors 13 Stories (https://hardcover.app/books/doctor-who-thirteen-doctors-13-stories) and Fifteen Doctors 15 Stories (https://hardcover.app/books/doctor-who-fifteen-doctors-15-stories). There's also a Neil Gaiman anthology Trigger Warning (https://hardcover.app/books/trigger-warning) that includes this story.

It would be great to be able to manage contents of anthologies and collections, especially since short stories have a tendency to be published in wildly different books.