If you go to Emphasis Markup, in an effort to find something you highlighted earlier, you just have the book titles in abbreviated form (P:HHJ = Philippians: How to Have Joy). It's easy to understand the abbreviations of the books of the Bible. But it can be more difficult with a book.
I can see why books are listed in the Markup list by abbreviation. But when your cursor is on that listing, a text box appears. The bottom of the text box uses the same book title abbreviation. It would be helpful if the text box spelled out the name of the book. If that doesn't appear to be the book you want, move on down the list. Otherwise you have to click on the box and see what book open ups. Then close it down to continue your search.