It would be really useful to have an additional item in the Overview section of the left hand panel: ‘Open Notes’. We already have a view of notes that are One the Agenda, and of notes that are date Today. These give us a quick way to get a list of notes we’ve deemed important in some way.
‘Open Notes’ would show, all notes that are not marked as Done. I often find myself wanting to get an overview of notes that need action or attention, and having to go through project by project is unwieldy. I know I could use tags, but it’s another mental overload when the Done check box is already there in the title of each note.