Greg's version is linked from my web page and is indeed a more sophisticated version, but is aimed at a different type of user.

These processes were a collaborative effort. Greg and I have worked together for many years, and so both the add-ins on my site (and Greg's) started from the same general premise, initially revolving around document variables and bookmarks, but later expanded to include document properties and later still content controls.

But we had a difference of opinion on the user requirement for content controls. I felt most users would simply want to insert and cross reference controls and not require the facility to go deeper, so I stayed with an earlier iteration that made that particular task a simple one for users and worked on that. Greg went much further with content controls and if you want that extra capability his version is indeed excellent.

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Graham Mayor - MS MVP (Word) (2002-2019)
Visit my web site for more programming tips and ready made processes www.gmayor.com