Creating folders in Carnet

The Carnet web interface looks promising, but I can’t figure out how to create folders. There seems to be a button for it in the bottom right (in the Browser view), but it just says ‘Rename or move’. According to the feature list there should be folders. If not, then having all my notes for different projects on one screen doesn’t seem very useful… Can someone help me out? Thanks!

PS: Could there not be a /e/OS banner as default content of each post? It’s confusing and tacky. Just put it in the Discourse styling if really necessary.