Replicate only some tables of MariaDB database
In order of your topics:


You can't do that with cluster replication. 
Multi-master is a cluster feature. 
You should try to use the replicate_wild_do_table setting.


Slave threads will be restricted to replicating tables that match the specified wildcard pattern. For example replicate-wild-do-table=foo%.bar% will replicate only updates to tables in all databases that start with foo and whose table names start with bar.