Mail Merge Template -- Showing Primary Contact merge fields in Account template

Mail Merge Template -- Showing Primary Contact merge fields in Account template

I'm trying to create what is essentially an Account profile form using a Mail Merge document attached to the Accounts module.  Each account has a Primary Contact, and I would like the profiles to include this information as well as other information associated with that contact, such as e-mail address, title, etc.  

The Primary Contact field is a Contact Lookup Field.  In the setup>>template dialogue, only the Accounts and Users fields appear.  Any advice from other users who are Mail Merge ninjas?