Hey Chris,
Thx for jumping in to clarify. Yeah, I’m not trying to create a general purpose deep copy - as we’ve discussed in the past, given Fibery’s almost limitless configurability, that would definately be above my pay grade… 
But in my case, a very narrowly focused copy function that assumes 1:M relationship at each level seems doable, as long as I can figure out the object model, which I think (hope) is shown in Yuri’s example.
If I can get this addressed, I’ll be all set!
Thx!