Well what it's done, is sort 1 author's books into 5 collections, which are the series. I wanted it in 1 collection, relating to the authors name, but with the series name alongside the book title.
What it cannot do either, is sort all books to one collection where the author may have had a co-author. It tries to make a collection for every book where there was a co-author, irrespective of whether that book was part of a series or not.
Now when I try to change it, it says none of the books have a file?
It's just going from bad to worse so I've deleted the plugboard and reinstalled the plugin. I just can't see how to work it properly.