A family of Microsoft word processing software products for creating web, email, and print documents.
Dear Daniel,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
Per the description shared, I would like to summarize your requirement i.e., you want to link two checkboxes in the Word document so that when a checkbox is checked, the other checkbox also needs to be checked automatically.
If my understanding of your requirement is correct, I would like to suggest you refer to the reply shared by Charles Kenyon in this thread: Linking Check Boxes - Microsoft Community
In addition, I will keep this thread open so Word Experts and MVPs can share their ideas regarding your requirement.
Thanks for your cooperation.
Sincerely,
Mia | Microsoft Community Moderator