Combining Multiple Word Files

So is there a native (or plugin) way to use Calibre to combine multiple Word files together?

So basically, I would like to have separate files for:

• Author Note
• Main Text
• Glossary/Back Matter

I recognise it's probably easier just to copy/paste the front and back matter into the main document, but the admin/nerd in me feels like being able to combine multiple files would be tidier.

Any help would be appreciated. :)