HTMLEditor customization

[Tom Eugelink]

I was wondering; is the HTML editor still at the point where any customization is done by executing javascript code via the WebEngine? I find some 10 year old or so articles on how to insert things at the cursor position using that approach. And inserting additional buttons in the toolbar by finding it via its CSS class?

Because the vanilla version of the HTML editor is limited; no image support and all.

Regards, Tom