We are currently creating contracts (in Word) using the mail merge template function.  The problem is that our customers don't want to see language specific to a product they didn't purchase.  Also, we don't want to print every possible product/service that isn't included in the sale.  Creating many, many possible versions of the contract just isn't practical. 

One of my peers has developed a Word document containing macros that parses through the output of the mail merge and includes or excludes sections using bookmarks.  The macro displays a window where the user selects various options that control the customization.  He created this process because he was told that you couldn't mix macros with the mail merge functionality.  It appears to me that you could mix the two but would have to have Office Edition installed.  True or false?

The process this person developed requires too many steps and I fear that our sales people will mess it up and thus proclaim it a failure.  The solution I would like to create would prompt the user for information needed to customize the contract language and then create the output in a single step.  Any thoughts on how I could do this in Word or any other technology?