this post is bout how to use the screen command to connect multiusers to the same screen:

first you need to create a new screen and give it a name:

# screen -S screenName

if you want to have multi users able to connect to it, so you need to enable the multiuser mode:

press Ctrl+a

you will find screen command line appears at the bottom of the screen, then type

:multiuser on

and press enter

now you screen is running in multiuser mode and ready to accept other connection

to attach to this screen:

# screen -x screenName