Plugins must always be installed in both installations (main website AND Autoreninstallation), for a working integration of text files with plugin data.
In a CoAuthors installation all "not data generating" plugins (like TableSort) also are working without problems.
Data generating plugins do not work without some modifications.
But it is not a problem to modify such plugins for usage in a CoAuthors installation of CMSimpleCoAuthors. The plugin only have to realize, that it is inserted with the plugin CoAuthors into a page, and customize the data path accordingly.
In the Demo already are working:
All 4 plugins are "data generating plugins".
This 4 plugins I will provide as new versions for download, so that definitely the functions photo gallery, video, mp3, comments, guestbook and blog will be available, also for the external authors.