I have had three computers running editor in the previous verion (v1.50) at one time, with a 144 surface. I don’t see why the surface would make that much of a difference in this case. However, this is the reply I recieved when I asked a similar question:
Yes it is possible to run 2 computers running Editor to an iLive system.
it is advised if you run multiple sessions of editor connected to an system that the computers at least match our recommended specification as this will effect how fast the system will run.
below is a link to the spec document
https://www.ilive-digital.com/Downloads/Readme%201.53%20Editor.pdf
Hope this helps
Sam A&H
Kris
Indiana, USA