Thanks. I was calling the Content Library Smart Content erroneously - I am aware of the difference.

The problem was that some of the Daz help seemed to infer that the library could sort out the layers somehow. It seemed more logical that I'd have to consolidate all the various and sundry content folders into a single aggregate directory, I was just looking for some confirmation.

I'd done it previously and run into some assets that couldn't find all their parts even though they were clearly where they were meant to be as far as I could see. That's why I deleted my entire Renderosity Library to start from scratch, just in case. Fingers crossed I guess. i'm just lucky enough to have space to store all this stuff and backups too, plus their unarchived results before lumping them all together.