Use of Attributes in Master Page Maps (Structured FrameMaker 2022)
I'm trying to apply Master Pages in a Structured book using Attributes. In the Book, I have an Attribute (TRMProduct) with the options of "Exo" and "Advanced". In the Master Pages for the documents in the book, there is a CoverPage_Exo and a CoverPage_Adv set up.
I want to assign the corresponding Master Page based on the value of the TRMProduct Attribute on the book.
I've tried using the Attribute name, Attribute Value and Context columns in the StructMasterPageMaps, but can't figure how how they're supposed to work.
I have tried the following:
Attribute Name: TRMProduct
Attribute Value: "Exo"
Context: *<TrainingManual
but that doesn't appear to be correct.
Any suggestions?
The Help file doesn't offer much on the topic either.

