But, in this article, you have all steps. By the way, there is no video explaining that, just videos about SAML.
https://www.youtube.com/watch?v=UZ1jHAt8whQ
But, It's very simple, just pay attention to all steps.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
Please, if this post was useful, leave your kudos and mark it as solved.