Originally Posted by DrChiper
Further, my main question was not so much for the saving and sending resulting file name (which I already figured out), but for manipulating the tag "title" inside the e-book format (EPUB, MOBI, etc.), for instance during a "convert book" action.
I don't think you're quite "getting it" yet. It is the book's TITLE (ie, the internal metadata within the book) that the plugboard changes. That's the whole point of it.