MTA-STS setup

Hello All,

I hope everyone is safe and healthy on Christmas Day and enjoying the weather!

Does anyone have experience setting up MTA-STA on WHM?  This link:

https://local.channelislandhosting.net/knowledgebase.php?id=4991-setting-up-mta-sts-for-email-on-cpanel

Addresses setting it up on cpanel only and I'm wondering:

1) Tips on how to set this up and,

2) If I set it up on cpanel, the domain settings must they also be duplicated within WHM?

ps - I always have a brain collision when instructed to make dns changes in cpanel even though it's high authority (WHM) does not get said changes. . .