Add a "kind" of thing that would show up in the Outline core plugin?

[AlanG]

Have a look at this Dataview snippet to create a table of contents. It could be modified to add margin notes into it:

Self-Upgrading In Document Table of Contents Plugin

Why not just use Dataview? It’s simple, functional, and automatically updates. Create a toc.js file in the root of your Obsidian vault, with this contents: // Set this to 1 if you want to include level 1 headers, // or set it to 2 if you want to ignore level 1 headers const startAtLevel = 2 const content = await dv.io.load(dv.current().file.path) const toc = content.match(new RegExp(`^#{${startAtLevel},} \\S.*`, 'mg')) .map(heading => { const [_, level, text] = heading.match(/^(#+) (.+)$…