What is a home automation group in the By-me?

It is a set of relays, or shutter actuators, or dimmers, belonging to the By-me system, which are controlled simultaneously by one or more buttons that are associated through the configuration menu of the control unit. Any relay/dimmer/shutter actuator can then be controlled by buttons located around the house simply by associating the operation on the control unit, and you can disassociate control of a light / shutter at any time via the By-me control unit without having to extract the device from the wall and rewire it. A device (either actuator or button) can work simultaneously in up to 4 separate groups (as long as they are all relay ,dimmer, or shutter control groups).