One of my favorite features of Muse is its visual sitemapping area. You can add pages, see the masters, and move things around very easily to create the structure of the site. It then can auto-populate menus and sub-menus. It's a huge time saver and I'd really like to see it implemented in Webflow.
Can't add photos but here's where I asked in the Feedback forum and included a screenshot: Link with photo of idea