I’ve just bought a paperwhite. Previously I had the old style kindle without a touchscreen. On the old kindle I had set up different collections, so once I had read a book I moved it into one of the collections, so the only books showing in the longer list were those I hadn’t read yet. How can I replicate this on the paperwhite? The paperwhite is showing all my books but just in one long list. There are some colllections, but they don’t match those on my old kindle and they include some read and some unread books 
. Can someone explain what I need to do to replicate what I had on my old kindle? Thanks!