A family of Microsoft word processing software products for creating web, email, and print documents.
Yes, setting the compatibility option to Word 2010 is file-specific. Of course, you can create a template with the compatibility option set, and then create new documents based on the template.
I've posted a Word 2013 template with this attribute set in the Templates and Documents section of my Downloads page. It has a read-me document that links back to this thread. It's title is "Text Boundaries Template for Word 2013/365."