I worked a bit further on the Plone add-on for the LibreOffice extension website. I made some changes on the edit form for the Extension Center module thus it will be more clearly arranged. In addition I worked on the user documentation for the Plone add-on. This is currently work in progress and will take a bit of time to finish. Once it will be complete I’ll publish a new release of the add-on ‘tdf.extensionuploadcenter‘.