[Dovecot] Editing sieve scripts via webmail?

Hello...

I have dovecot 1.0.10 running with the sieve plugin and virtual users (LDAP). My webmail is squirrelmail. I want to allow the users to create sieve-scripts via a squirrelmail-plugin. The plugins seems to require that the IMAP-server is cyrus.

What are the options for dovecot?

Thanks, Tobias