I'm going to add my "me too" to this thread. I was really very surprised to find that once I thought about using this feature, that it wasn't present! This is something that - for instance - Lotus Notes had back in the mid-to-late 1990s. (Never thought I'd miss a feature from Lotus Notes!) I appreciate that it's not likely an easy feature to add (no software development is easy) but it would be a fantastic way to improve the workflow of some of the projects with which I'm using Evernote. It's especially important for shared/business where multiple people might be editing things in a big note. I've seen the emails about how things are improving with EN and I look forward to that continuing and in such a fashion that it includes this collapsible sections!