A family of Microsoft word processing software products for creating web, email, and print documents.
This can be done. The way I do it is to place the name of the master template in a document variable. The subsidiary templates are based on that but have a different name. A macro in the master template checks the name of the attached template and compares it to the variable. If the names do not match, certain features are copied from the master template to the new document based on the subsidiary template. Those features are styles and in some cases bookmarked text.
An example is shown in the Letterhead System you can download from my page:
Downloads - Microsoft Word - Add-Ins - Tutorials - Letterhead - Templates
Another method if what you want is simply text and/or graphics to be uniform is to put the text and graphics into AutoText stored in a Global Template. Use AutoText fields in your subsidiary templates to display this information.