Question Dual Gridboss with single 48KWh Generator

I am doing research for my setup.  I have dual 200A panels from a 400A meter.   I am planning on dual Gridboss one for each panel each with dual Flexboss21.  Each panel would have 10KWh of Solar and it's own battery backup.  Essentially, two separate units.  I want to add a generator backup.  I was planning on getting a single 48KWh Generac generator which outputs 200A that feeds to both Gridboss units...  Is this possible?  Or do I have to get 2 generators at 24KWh each?  I was hoping to only have to get a single generator vs having to maintain / service 2 of them.

Am curious if both Gridboss units can control a single generator and tell it to turn on / off when the grid is down.