microsoft-iot-central

I have been reading the documentation of this new SaaS offering, but I do not see any mention about being able to send a message to the device, eg: to switch ON/OFF an equipment . https://docs.microsoft.com/en-us/azure/iot-central/tutorial-add-device I do see there is a provision to change the settings of the device, by being able to alter device-twin. Also, I read there is a way to send an "echo" to the device. But, these don't serve my exact purpose. So, is there a way I can send a C2D message, using the connection-string, which can be built using the routine-? https://docs.microsoft.com/en