🚀 go-pugleaf

We use FrameMaker to document a product that has dozens of manuals. We are about to begin including cross-references between documents. We want to include the name of the book in the cross reference. For example: For more information about daisies, see "Asteraceae" in the Pearson Flowering Plant Guide.

The book title currently exists in each chapter as a set of variables: Product, System, and Document. Using the example above, the three parts would be Pearson (Product), Flowering Plant (System), and Guide (Document). These appear in the header on odd pages.

I would like to incorporate these variables in the cross reference, but that doesn't seem to be possible, perhaps because the variables mean different things in each book.

How can I get the book title into the cross-reference?