How do you remove books that are nolonger published from your profile? > Likes and Comments

I have three questions. Somebody please help

Question 1.
-How do you remove books that are nolonger published on Amazon from your account profile?

Question 2.
-How do I ungroup books that were previously grouped so that reviews of one book don't show up on another different title?

3. Question 3.
-How do you add books to your profile? Let's say the books already exist on Goodreads library but not visible to readers who visit your account profile. How do you make the link?

https://www.amazon.com/stores/author/...?

1. Goodreads does not remove published books
2. Librarians can separate books if they were improperly combined. Please provide Goodreads URLs for any books that need to be separated. I'm assuming you're referring to these books: https://www.goodreads.com/work/editio... and I have started to separate them by title. Please be careful when using the combine edition tool in the future.
3. Provide Goodreads URLs here for any books that are on the wrong profile