[Dovecot] Dovecot 1.x and 2.x on the same machine ?

[Frank Bonnet]

Hello

Would it be possible to run two instances of Dovecot
in order to test V 2 on the SAME machine that runs V 1

One Dovecot 1.x instance on std TCP ports
One Dovecot 2.x instance on custom TCP ports and custom directories

Thanks