I’d like to clarify a few small points:
CMA (Customer Management Add-on) is a very old term. The correct term today is Domain or Domain Management Server, which refers to a dedicated server that hosts virtual Security Management Servers within a Multi-Domain Security Management (MDS) environment.
Please note that MDS is currently not supported in Smart-1 Cloud in the same way it is in on-premises deployments. Instead, we offer what’s called Multi-Management support in the cloud environment where several Managements can be connected to the same tenant.