Percona Cluster don't sync some db's

With MySQL replication you have the option to not sync dbs etc does Percona cluster offer this? I have currently implemented a solution where I sync (by sync I mean have a 3 node master - master setup) the DB’s I need using Percona Cluster 5.6 but then using MySQL Multi spin up another instance of Percona without replication. Is this the only option as it will involve me rewriting the mysqld_multi script to work with Percona.

Ideas? Thanks in advance