Multiple logins from a single terminal under SysV

[Marlin Sheffield]

 I have need for virtual logins from a terminal attached to an Arix
computer running system V rel 3. Does anyone have any suggestions.
I've tried to stick to layers but that really is not workable in our case.
I have screens source but that appears very BSD-ish. Has anyone ported to 
sys V and willing to share any hints?
  
Thanks for what ever assistance you might offer.