Hi Chaley
Thank you for "biting" on this one as well

Never thought of user categories, since I've never used them before
Your suggestion works brilliant, am surprised how many books I forgot to send to K3.
One question: It takes 6+ minuttes to drag/drop into possibles category, ie. until Calibre responds again. Is this normal ?
(pretty quick system, 1028 books with contents in k_collection)
Anyways this is doable, won't impact until I do this.
Was thinking python,templates, getting in way over my head ;-D
Thanks again,
Cheers,
Per