IMHO you'd do better to create a Custom Document Property or a Document Variable named 'role', for example, then use IF fields in the document to conditionally show content according to which role the Custom Document Property or a Document Variable is set to. Such a field for a Custom Document Property might be coded along the lines of:
{IF{DOCPROPERTY role}= "Manager" "Conditional content for managers"}
You could have multiple such fields for a given role scattered throughout the document. All one would need do the see the documentation for a different role is to update the Custom Document Property then refresh the document's field display. A dropdown content control might be used to manage the role selections.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Thank you everyone who replied. I will experiment with your suggestion and see what is going to work for me. My large amounts of text will probably be 100 pages or so.

Thanks again!!

Tonia

That suggests whatever you're doing probably warrants a completely different approach. For example, a parent document with the content that is common to all variants, with the common content linked to the child documents that contain the variable content. That way, the common content can be maintained in just one document and the variable content in the documents it's linked to.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]