I am honestly shocked, that this feature is not included. I just signed up for squarespace and this is a make or break for me. How am I supposed to work on project pages without being able to save them in unfinished stages? This means people visiting my page will see half-baked project descriptions until I am done editing? I also would really need the option to set existing projects to private or migrate them to another portfolio in case I don't want to feature them on my main page anymore. These are really standard features in all other CMS systems I have used so far. It's a shame too, because everything else works so much smoother and the editor is just great!