Putting quicktags beneath textarea

That’s not an available feature. You’d have to fork it and hook in after the text area and not before.

Yes, but than I get errors… Or I am forking the wrong code. Where do I have to look, which line?

I hadn’t even looked at it before ??

It’s in the call to the Quicktags API: https://codex.www.ads-software.com/Quicktags_API

So in the JS file, I call Qtags, and that’s how it knows ‘where’ to be. You;d have to change that and then code your own hook to change where the API is going. And I have no idea how to. I never saw a need.