I created a new section for documentation and howtos and added first content about LibreOffice and Plone to it. You could get there my documentation about non-code LibreOffice extensions and a howto about the development of a validation function for file extensions that could be changed by the Plone site-administrator without getting his hands dirty inside the code of a Plone add-on.
You’ll find the new section at https://amantke.de/dokumentationen-howtos/