The title is self explanatory, but to reiterate. It would be useful if you could stack 'notebook stacks' into "notebook stacks", (much like a file folder system) then for people like me who are soon chalking up 1000's of notes for one particular topic it would become well used.
I understand that tagging allows as many 'tag' subcategories as necessary, and this is a great idea except it lacks the feature of you being able to have the simple function of "Create notebook in <tag>" which would essentially bypass the need to use the notebook stack system. I don't use tags simply for the reason it's another task tacked onto the notebook stack system, I must use that system and then --if I remember-- tag it later.
Which is another feature request that I posted in another thread.
Thanks