When will this be implemented? I've seen posts over a decade old asking for this functionality. I've switched to Notion for now. Takes some getting used to after using Evernote for 8 years, but it allows nested notebooks and helps immensely with keeping my classes and lectures organized. I cancelled my Evernote sub and signed up for Notion's premium. Might check back on Evernote in a few years if it's still around to see if they added this, because aside from missing this feature, Evernote is pretty great.