[Abrasrose]

I have three questions:

1) I want to put recently purchased books into Calibre from my Kindle, but I don't know which books aren't already in Calibre. Is there a way to compare the books on my device with Calibre? I can see the comparison between Calibre and my device, but I need to go the other way. Once I get the books identified, how do I get them into Calibre?

2) I have quite a few books on my Kindle that don't show up when I view the books in the main memory of the device in Calibre. I know they are on my Kindle and not in the cloud. How do I fix this and get them into Calibre?

3) I edited the metadata of most of my books to include a star rating in the book title. I'd like to move that to my Kindle. How do I just send new metadata to my Kindle? If I can't do that, can I resend the book data to my Kindle and will it replace the copy that's already there?

Thank you to anyone who can help!
Abra