Thank you for your reply, Saguaros.
At this stage I am trying to get an overview of what can be done with ACM. I was hoping for documentation which provides this overall picture, rather than having to fiddle with all the options in the module settings to figure out how each of them works and what they can do. Once I know what they can do it isn't so hard to do it, but it's a bit tedious trying to work out the possibilities by trial and error.
It would be most helpful if this kind of summary could be added to the documentation at some stage.
Best regards
Bruce