Assign, Unassign, and Reassign Devices

through the xunison app, you can now assign, unassign and reassign a smart home device how to assign a device to a room? another way to assign devices to the room another way to assign the device how to reassign a device to a room? how to unassign a device to a room? another way to unassign the device from the room another way to unassign a device from the room