Several of my projects last for many months, sometimes years. It often happens that a given part of a specific project is done, and I then proceed to the next part. It would be useful if I could somehow “draw a line” within a project to separate older notes (below the “line”) that are done with, and more recent notes (above the “line”) that are relevant to present work. Bonus points if I can show/hide what is below the line.
The ability to draw several of these lines would let one divide a project in several chronological parts. I would use such an ability a lot currently I use empty, closed-up notes with titles like “==========” to reach the same result
The way I see it, the functionality could be similar to the “project sections” that were introduced in Things and that can be found in Todoist today. Those are not really containers at heart but rather “simple” delimiters.