Custom Grammar Model?

I've been experimenting with using Sharepoint data as the base for Azure AI Search and Co-Pilot studio and so far stuck with chatbot assistants. 

I then had an idea which I don't know if it's possible - our company has lengthy writing guidelines (things like bullet point formatting, capitalization, etc.). Can I create a custom Co-Pilot model using this information, and then use it within Microsoft Word to suggest corrections as a user creates a document?

Thank you!