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@ellisonbg Thanks for taking a look. Instead of making this the default behavior, we could add an extension setting to allow users to toggle ToC indentation. Lack of ToC indentation...

@ellisonbg Sounds good! Thanks for your input!

@ericdatakelly Depends on if people want/need this in a JLab version prior to ToC being merged into core. I don't necessarily see any harm in keeping the PR open indefinitely.

@AlcoholV Not sure what exactly you are asking for. Can you clarify? This extension supports "adding" a heading to the ToC by finding and parsing those Markdown cells which **begin**...

@mlucool There is currently no changelog. The closest approximation is looking at the commit history. The main breaking change from `3.x` to `4.x` is that collapsible notebook headers is disabled...

@nigiord You need to set the extension setting in the "Advanced Settings Editor", which can be accessed by the settings dropdown menu.

@mlucool That seems reasonable; however, there is currently some debate regarding whether the ToC extension will be merged into JLab core, so not clear whether feature development is effectively frozen...

Not sure the timeline. Partly because core devs are evaluating whether the act of merging into core should precipitate a reimplementation for purposes of tighter integration, etc. I can raise...

@mlucool See https://github.com/jupyterlab/jupyterlab-toc/pull/141. Let me know if this works for your use case.

@mlucool Agreed on being more generally available; however, sadly, this would require a more extensive refactoring of the extension (and time commitment) to support this.