How to enumerate multi-library with RGroups method?

Dear all,

I have many core structures to enumerate libary, with the same RGroups(X*Y or X*Y*Z). One rg file can only store one core for a library.

I have read the example "04 Assembling Fragments into an RG File", but I can't get the answer.

Who know how to create many RG files or enumerate many library?

Many thanks for advance!

Qiang