How to export annotations (version 9.11)

I have just updated to 9.11 and I’m glad to read we can export ‘annotations in the HTML format as a standalone web page’.

I can’t find where or how to do this, can anybody help please.

I assume that it is directly built into calibre but I also have the annotations plugin too.

Forgive me if this has already been asked but I can’t see it here and I couldn’t find it in the user manual.