Editor toolbar item for fast manuscript outline modifications

We have yesterday made available an experimental new editor feature: a toolbar item for modifying the manuscript outline. The idea is to make it easier to turn paragraphs to section / subsection headings, and back. This feature is still in a rough form but we’d love to hear what you think.

Here’s what it looks like right now:

Our intention is to expand this feature next week to also allow switching the paragraph type:

Please let us know what you think, in particular if you’d like us to follow a different route. Thank you!