Currently Comments in Writer do support only a few formatting features: Font, font size, bold, italics, underline, text alignment (align, centered, justified).
Most of the expected formatting options are not supported:
* Bullet point lists, identation, font color, highlighting, background colour,...
* Inserting table, inserting image, inserting drawing objects,....
Please allow complex/rich text formatting for Writer comments.
P.S. I add this bug report inspired by Miklos' blog entry on "TextBox: complex LibreOffice Writer content inside shapes" where he points out that both implementations use EDITENG. Please see: http://vmiklos.hu/blog/textbox.html
valuable enhancement request. status NEW.