Run a second P4 as an extension box to consolidate sensors and controls

Alright as the title states, I have several p4s that I'm looking to create a controller/node scenario with instead of independent controllers. So P4 (A) is the Controller, P4 (B)(C) etc will act as the nodes or extension boxes on the PAB loop. Is this possible?

I've been up and down the settings in control center, ghl app, and myghl and haven't found anything as well as through all the programming materials on the GHL website and scoured the rest of the internet. I've also tried connecting the p4s together over the PAB ports to see if they would pop up in assignable PAB devices but nothing there either.

Any help would be greatly appreciated.