I can't tell you what I do to use your system, because it has never worked for me. What I am saying is that what I've always done is: 1. Click on the Numbers icon in my Dock, 2. Click on the pen if I want to start a fresh page in Numbers, 3. type or paste into the Numbers page. That's all. I HAVE NEVER PAID ANY ATTENTION to the different folders in the leftmost column, and now I think that's where my problems have started. Whether I noticed or not, some Folder had been selected, and that's how they got "lost." Why the computer selects different Folders at different times I don't know, but I now think that I have to be sure that when I use Notes, the same Folder is always being used. I'll follow that practice in the future. Now I only need to know how to consolidate all of the Folders being used to store Notes. I want all Notes in the same Folder. I can see why some people might want to use more than one Folder, but I don't. Incidentally, if I've used "Folder" when I should have said "Files," or vice-versa, I'm sorry, but I'm sure you know which places or things Im talking about.