(edited to remove topic possibly misunderstood)
I realize that there may be valid reasons for EN to not provide a locking or private option for notes or notebooks, but I come back to my reason for supporting the request. EN is my 'one-stop-shop", where I also keep employee notes, etc. Yes my PC is locked when not in use, however some of my use is on a projector with others viewing. I can't use EN in this mode, because of the related content and notebook/note names that can be seen by other employees. A simple 'private' setting or pin to prevent those notes and their content from being accidentally displayed would suffice. Not trying to project against a password attack, just inadvertent viewing of private data.
EN does a good job of providing stability updates. As a premium user, it is money well spent for me. However, this is a big hole in my mind. Maybe they can put some of that money gained from selling desktop organizers and backpacks into a few software features?