Thank you for all the help so far @lkoenig
Changes have been activated. And my “Monitoring Agents” for the ESXi host mirror your screen shot. When I save and test services all I get is:
Also, I will be installing the agent on each VM and adding them individually. I have a few already up and running with active email alerts. I was just getting thrown off by the documentation. The CheckMK documents make it sound like I don’t need agents on my VMs. They word it like piggyback data from the hosts is sufficient.