Sorry if this, or something similar, has been requested before, but I'd love an option to apply tags to all editions rather than a single edition of a book. I tag books by what kinds of representation they include or various tropes and sub genre categories that aren't edition specific and if I reread a book in a different format than the edition I initially added tags to, I have to add all the tags again so the book will appear in my custom tag charts. Even a way to 'copy' tags from other editions to a different edition as a single action would be useful!