Native "All on" and "All off" commands on Zwave

Hi all

I have a house full of Fibaro dimmer 2’s controlling my lights. They appear to be able to respond to an “all on” or “all off” command, but I don’t know how to send that through the normal zwave integration in Home Assistant. This appear to be different from grouping together all the dimmers in HA and controlling them together. Rather, it suggests there is a single zwave command sent across the network to which they all respond?

Can anyone advise?

Thanks

Peter

I’d like the solution too

Pleaaase :pray:

I also noticed this ALL ON/ALL OFF setting with my GE Jasco dimmer switches.

Here is their documentation on advanced zwave features:
https://ezzwave.com/advanced-configuration