Connection to database cluster

Hello,

I have created an an Aurora RDS cluster with two database instances, one for writing and one for reading. Since my application has some services that are read intensive, I want to specify the database from which the entity manager can read. Is there a way to specify multiple databases in cuba that share the same persistent entities? I simply want by default to connect to the writer instance and then for some queries switch to the read replica instance.

Thank you in advance.