MobileFrontend + MinervaNeue only expose section-editing. This is (presumably) for general performance reasons, making it easier for someone on a mobile device / cell data to edit just a small part of a huge article.
However, some editing tasks need / are-made-easier-by access to the full text of the page. We should give editors a way to access the full text.
Up for debate: make this easily-accessible to all editors, or stick with the current state of only exposing section-editing through the UI? (It's legitimately confusing that the edit-button at the top of the page next to the other page-level actions currently only opens the editor to the introduction section of the article, for instance.)