There are two. First, I couldn’t create a host due to the synced content showing as greyed out.
Having found this solution and actioning it, I was in the process of building a new CV. I have created Products centos-8-base, centos-8-appstream and centos-8-base-kickstart.
When creating the new CV, do I have one centos-8 with the kickstart and another without and have the host change CVs or can I add all three products to the same CV and the underlying will work it all out?