How can I use H4 - H6?

Thank you.berdan.
Does that mean that you can not use it even if you add a CSS class?

Also I found this kind of writing, but can not you do using additional plugins etc?

I wrote this feature request I wanted about a month ago, about the need for a Table of Contents / special $variable tag to navigate large complex documents quickly for things like research proposals, large wikis, or bookwriting

✪ TABLE OF CONTENT NAV: Scroll Tag $variable [OR] Right Pane Nav H1 to H6

EDIT: Adding onto the Table of Contents Idea It would be really cool to have something similar to app.classeur.io, where when you specify a documents H1, H2, H3, H4, H5, H6 header tags, etc that you could pregenerate / automatically generate a Table of contents based on those. And then access that on as a right side preview pane (Top Navigation - Traditional TOC example - would be the tag index cloud mentioned earlier) (Right Side Example - app.classeur.io https://app.classeur.io/#!/files…