I am a new Lightroom user and chose to do a long book. When I got done with the placement of photos and pages before I jput text on I tried to save and ended up with a mess. I have redone to that stage and now want to lock in what I have and save it before going ahead with the text. How do I do that. I really want to save at various stages of the project so that I do not need to start over from scratch since it is about 140 pages. Can I get some input on this. Thanks
Jim