I have a VBA project that compiles lengthy documents using templates. Often the templates are customized (User-specific information is added, or text is deleted that doesn't apply to the User).

I'd like to be able to track the custom text in some way that it can easily be identified by VBA code but without the tracking mechanism being visible to the reader.

I was thinking Fields might be the way to go, but I thought I would ask the Forum users what the best way to achieve that would be?