At InfoComm08, Yamaha introduced PM5DEX.
We gave a new name for a system of PM5D and DSP5D.
Also a booklet about PM5D V2 features is available from the web site. I believe most of PM5D are already updated to V2.20 and you are using those functions. But please check it and get better ideas of Virtual Soundcheck function, new security functions, improvements for operations of the system.