attach sessions in multiuser

[Zaphod]

Hi

I am trying to use multiuser session with screen from lately git.

1.
I have 2 users on my Linux, where user1 running screen session with
commands 'multiuser on' and 'addacl user2' in it's RC file.
Second user doesn't see such session from 'screen -ls'

I want user2 to be able to attach to session of user1.

2. Can user2 attach certain screen of the session of user1?


Thanks everybody for help :)