Second Life Copybot

I'm sure this has been asked and answered somewhere, but is there a way to copy from a vendor, as one would off another avatar?  I see people posting fatpacks and entire folders full of things, and am really curious how it's done.

Seconded, the content available makes me think it's possible. I had limited success with Darkstorm, by taking a copy of the vendor but it never quite worked right. Anyone know a way to take a vendor and contents? Would make life a lot easier.