I am just wondering when I use the keyboard shortcut CTRL+SHIFT+S to focus on the sidebar I am able to navigate my various notebooks using the up/down arrows, and I am wondering how I can expand a notebook to view the nested notebooks within. Thanks.
agreed, I would suspect an arrow to the right to expand and to the right to collapse. but unfortunately we can't even jump to notebooks/notes/tags with entering letters (yet) as we can in windows explorer.