I have recently installed Flash Pro CS6 and am using it for the production and maintenance of a hundred flash-based simulations. To streamline maintenance, I linked key assets to a single .fla file:"MainLibrary". Unlike the previous version of Flash that I was using, CS6 DOES NOT prompt me to choose whether I want to replace or store the matching assets in a Duplicate items folder. It does so for a single instance when I import an individual item to the .fla target library, but not en masse when I first open a "target" .fla file.
Any help, direction to other help sources would be greatly appreciated.