To add my point of view to this discussion, if I zoom out I see you’re trying to essentially add an additional dimension to your projects, notes you want to keep visible and notes you want to be able to go back to if needed but shouldn’t take up the space within the project so you can focus on those notes that are of more importance still.
Perhaps the solution (or workaround if you want to see it that way) is to think about how you can add such a dimension in a different way. For example, instead of hiding notes that are less important, you can flag notes to me more important (inverting the approach), which I guess is why others have suggested to use On the Agenda.
I would suggest another way of adding a dimension and that is to use an additional “layer” or hierarchy level in the sidebar. In other words, certainly for long and large projects (lots of time covered and many notes), you could consider turning them into a Category or (additional) Subcategory. For example, originally I had an hierarchy that was like this:
- Category Development, containing:
- Project Agenda, containing
- Notes for:
- each major Agenda update
- plus ideas for the website
- plus ideas for the YouTube channel etc.
You can imagine that project Agenda turning huge and leading to want to hide notes for updates we already shipped etc. But a much cleaner solution is what I did instead and create a category Agenda:
- Category Agenda, containing:
- Project Updates, containing
- Project Website, containing
- Project YouTube Channel, containing
- Notes for:
- ideas for the YouTube channel etc.
Now each of these projects is much smaller and more focused. In fact I went even further and introduced another level and have subcategories Roadmap, where each major update of Agenda is a separate project, YouTube, where each episode is a separate project, etc. This has the huge benefit that once we ship a new version of Agenda or post a new episode on YouTube I can now archive the corresponding project and thereby “hide” all the notes belonging to the project.
Long story short, I would suggest you consider redistributing your notes in a way that you can archive the projects that are no longer top priority and thereby hiding those notes.
And to finish, we are aware that it would indeed be nice to be able to easily exclude or include notes that are either in archived projects, or marked as done, from search results and overviews. Something which is of high priority on our list.