[GNC] Where has a custom report been saved?

[Chris Green]

I have a custom report (I think it's basically a modified Transaction
Report) in one gnucash set of files that I want to use in another
gnucash.

Where and how do I find my customised report settings?  It comes up
with the title "Register" in gnucash but I can't find anything like
that as a file anywhere.

Is it buried somewhere in the database (I use sqlite)?

-- 
Chris Green