Lutron Clear Connect also supports group commands to reduce the popcorn effect, much like Zigbee Group Messaging. Are we able to group Lutron switches this way since we don't have our own Clear Connect radio? I can't seem to effectively group devices in the Lutron app in a way they're seen by Hubitat, only create scenes, which are either all on, all off, or a preset level, which isn't as useful as a group of devices would be.
It also seems to work if I assign multiple switches to the same Pico, but the switches can't be paired with more than one Pico. I can't, for example, have a switch paired with a Pico as a 3-way solution and also pair it with another Pico that controls a group of switches.
Reference doc: Clear Connect RF Technology
Group commands vs. directed commands
Unrelated to how the messages move around the system is the issue of the message content and how the system design reacts to that content. Lutron systems, including those with Clear Connect, use “Group” or “Preset” commands. In this scheme, a button press sends out a generic command like “Preset 01.” The devices have distributed intelligence (e.g. devices have non-volatile memory and a database, and know how to react to this command). When a button is pressed, the system transmits “Preset 01” down the fixed network one time. All devices “hear” and respond simultaneously.
While these systems can be expanded with no degradation in performance, most system designs do not have this mechanism and are unable to provide it. The reason is that it requires ownership, coordination, and hardware (memory) of all the devices in the network.
In systems comprised of devices from a disparate group of manufacturers, commands must be issued to each device sequentially. These commands are called “directed commands.” To turn on 10 different devices requires 10 unique commands. This can create the “popcorn effect.” One light turns on; there is a pause, the next turns on, and so on. To see it in the application is a real letdown. Customers may be happy with the initial installation, add more devices, and become dissatisfied at a later date.