Great Features...But I wish some more were available in IOS app

I love many features of Kindle for iPad. X-Ray, the ability easily to look up a word, or even search the internet for facts or perspectives, and the ability to highlight and underline are a few.
It seems, however, that you cannot loan a book very easily from the app. And I would love to be able better to remove a book from my home screen that I have read. Sometimes books I have read are sadly forgettable, and having them still appear on the library screen without being able permanently to mark them or give them a rating is an shortfall that I wish would be addressed.
If these were available Id give it 5 stars.

DLB P& p about Kindle – Read Books, eBooks, Magazines, Newspapers & Textbooks, v5.13.1