CM config synchronization

Hello anyone from M&R community, maybe you have solved this already, so I am kindly asking for and advice.

We have the frontends in 3 nodes cluster and I can not figure out how to sync servers registered in CM between the two cluster nodes. No config in /opt/APG/Web-Applications/Centralized-Management/centralized-management/ nor in /opt/APG/Web-Servers/Tomcat/ /webapps/centralized-management contains list of our servers. I know its one time change when you add new server or sou, but we are changing our HW design to VM and we will deploy 28 servers, so I would prefer to sync the config instead of filling in 3times all the servers webservice strings

Just to clarify this is what I need to sync to other nodes:

Thanks all for any input.