allow screen to support sharing
#>sudo chmod u+s /usr/bin/screen
#>sudo chmod 755 /var/run/screen
set a guest user account in the host machine
screen -S pair
Ctrl-a :multiuser on
Ctrl-a :acladd guest
vim
the remote user logs in as guest
ssh guest@your_accessible_ip
screen -x local_user/pairĀ (where local_user is your local account running screen)
works for me