As part of our permissioning we will also bulk block and unblock users and delete them (when they don't pay membership fees. I thus needed a way of doing that....and being Open Source I just added the feature. The code was easy to follow and I could do what I wanted so I'm happy.
I have posted a new set of files with my changes for these new features so hopefully everyone will see them once translators have caught up if the developer thinks they are OK.
My next patch will be to look at a 'bot style interface so another computer can push a CSV file via a shell script. That would be cool.