Since you have the abbility to add and edit books, you should read the Librarian Manual. What you are asking goes against Goodreads Policy, and if a librarian did what you ask, they would loose the librarian status.
It has 5 editions, and all are different formats of the book. Let's imagine we would delete all editions keeping the Kindle Edition. What about a reader who has a physical paperback edition of your book. How would that reader add your book? They wouldn't, as the paperback edition would be deleted? Or they would add the Kindle Edition, which is a digital edition, despte having the physical book?
There are rules for merging/deleting editions, it can be done, but it's not allowed to delete valid editions.
What you are asking goes against Goodreads Policy, and if a librarian did what you ask, they would loose the librarian status.
Book editions aren't to be merged or deleted. Taking this example, your book Reaper:
https://www.goodreads.com/work/editio...
It has 5 editions, and all are different formats of the book.
Let's imagine we would delete all editions keeping the Kindle Edition.
What about a reader who has a physical paperback edition of your book. How would that reader add your book?
They wouldn't, as the paperback edition would be deleted?
Or they would add the Kindle Edition, which is a digital edition, despte having the physical book?
There are rules for merging/deleting editions, it can be done, but it's not allowed to delete valid editions.