Creating a documentation set with separate book outputs

[Robert Fekete <frobert@balabit.com>]

Hi All,

I have a large book that I would like to split up into several smaller, 
interlinked books. The plan is to create separate book elements for the separate 
books, but include a global TOC and index in each. I thought that docbook sets 
were the way to do this, but it seems that sets are used to merge separate books 
into a single one. I've tried googling, but to no avail.

Is there a way to do it?

Thanks and Regards,

Robert