I added the screenshot. Again, this is not a simple project but once it is set up it takes very little maintenance.
KenyonFormsDocumentation.jpg
Advantages to thus type of modification:
  • I've used it since Word 2010, in Word 2013, 2016, 2019, 2021, and 365. I currently use it concurrently in Word 2010 and 365 on one computer and in Word 2021 on another.
  • It is portable. It is easily added to another computer or user, without messing up any local customizations. It is not in the Normal template.
  • I can add or subtract templates simply by adding them to a folder or deleting / moving them from that folder. They will then appear in the menus. Dynamic Ribbon Menu by Greg Maxey


Much simpler, you could record macros creating new documents from your template and put those on your QAT.
Save the macros and corresponding QAT modifications in a separate template loaded as a Global Template, You would want the templates stored in your Workgroup Templates folder or subfolders. That makes it easier for the macros to find the templates on different computers.
Modifying the Quick Access Toolbar (QAT) in Microsoft Word