[Stevex]

You are right.
The only way would be inside Calibre, if the editor wrote a version stamp in the epub.
In the longer run, it would maybe make sense if the Calibre library management itself became abit more Sharepoint-y
But ok no quick fix.
The list thing is interesting but for two reasons doesnt work for me onthis. Interesting to know it's there though.
Thank you!
Steve
Ps Peter I've just seen your message. Hmmm i had initially ruled that out, but the more I think on it, the more I think you might have a point!