Installed your product which looked useful, but needed to add a couple of categories thereafter to get the most of it. Did so new categories don't show in the drop-down or of course the category breaks (this is relates to posts not looked at pages)
Reinstalling didn't refresh the list, so I guess I will have to change things in the database but not looked yet, if there is anything in there that is not obvious please let me know.
Although it might still be useful what I was intending to do potentially was select a group of posts as defined in one category and then apply a batch action to add another category to all posts, I realize now I made a stupid assumption and hadn't seen the limitations. But it would be great if your tool also offered this at some point in the future.