cyrus replication : master to replica and replica to master

[David Touzeau]

Dear

I have set cyrus-imap with master and replica.
This configuration is a kind of cluster Active/passive

I would like to know if it is possible to SET the replica has the master
too 

in order to replicate new mail saved on the replica to the master and
vis versa

In this case it should be turn to active/active..

If it is possible, did someone build this kind of configuration ? 

best regards