Hi MM
I need Core functionality the most as Airplay is top priority hence all speakers connected to the core or BeoVision if the Core is integrated.
But now it seems to all work with independent volume control using the RJ45 Masterlink patch module. It really is like the Powerlink Switch without needing to be powered.
Not sure if this is the best way to do it but this has given me everything I wanted for now.
There is no BeoVision in this mix yet.