Jim McKeeth has updated the GExperts documentation a bit. It’s far from finished but that’s better than the totally outdated one on gexperts.org.
I have now exported it as webhelp and checked it in to subversion. You can read it at my newly created domain help.gexperts.de.
(The domain was temporary only. I got it cheaply but I didn’t keep it. You can get the same content from SourceForge https://svn.code.sf.net/p/gexperts/code/trunk/webhelp/index.html )