How to enable the central gateway function on the Xiaomi Mesh System BE3600 Pro?

The central function of the main router in the Xiaomi Mesh System BE3600 Pro is the main central gateway, which can be thought as the upgrade of Bluetooth Mesh gateway. To use the central gateway function, you can go to the Mi Home/Xiaomi Home APP >> the plug-in interface of the router >> Bluetooth Mesh gateway >> enable Bluetooth gateway.
Note:
The central gateway is equivalent to an upgraded version of the Bluetooth Mesh gateway. When the Bluetooth Mesh gateway is turned on, it directly has the central function.