Commercial Electric 81715 Ceiling Outlet Concealer User manual

I have reviewed the instructions for the Commercial Electric Outlet Concealer 81715. This document provides the steps for installing the concealer to hide an outdated outlet box and detailed mounting instructions. I'm here to answer any questions you may have about this product and its use.
What is the first step before installing the outlet concealer?

What must the ceiling box have for proper mounting?

What do you need to do with the box stud?