I didn’t know about that shortcut, thanks. I do often use my iPad without an external keyboard; a sidebar would still be helpful there. Even with a mouse and keyboard though, a sidebar that highlights what section the cursor is in would be very useful when working with long documents. It would also be handy for quickly rearranging sections without entering the modal arrange view.
+1 more. The tip for headers navigation was greatly appreciated! It was actually command-\ for me (Mac Studio) for some reason. Really looking forward to being able to collapse sections though.