To think I almost missed this thread
THIS is brilliant, especially all the hints you ALL are describing/discussing.
Makes it's possible for me to understand AND use the plugboard.
My K3 loves it, once it's done indexing, I think.
So far it look like the re-transmitted books go into correct Collections with the old ones, but can't say yet, until it's done indexing.
My worst issue with the K3 seems to be resolved with a little work by me, but a LOT of great work by the Calibre TEAM !.
P.S. This thread is fast on the way to "sticky" status ?