Maybe this or something similar is already available. When I'm in a book such as the McClintock & Strong Cyclopedia (where the entries can be very long; see, e.g., "Passover"), I sometimes use Ctrl-F to go back to a place where I read something and remember a key word. It's good that "Highlight All" is available, but I've found that sometimes the sheer volume of data there makes it hard to find something. Would a "Go to Next" button be good there? I guess this would be good for commentary modules, too. There are some really long commentary entries, too.