Need help with configuration of multiple controllers in the same house

[admin]

I want to confirm with you.

1. if you want use one KC868-AK different button control different relay controller by RS485.
only support ON/OFF action for relay controller. You can't use TOGGLE command by RS485 modbus. are you OK?

2. if you want use one KC868-AK different button control different relay controller by network (Ethernet or Wifi)
so that you can ON/OFF/TOGGLE different controller's relay.

which one you want?