Simple narrative of how to install firmware on CleanFlight controller boards. Done in one take, sorry for sounding monotonous I was very tired... it's a quickie this one.
Silabs driver for Naze boards is from https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
CleanFlight Configurator is a Google Chrome web browser extension : Chrome - Preferences - Extensions - Aadd an extension... search for CleanFlight.
Thanks to Dominic, Boris, Nick and all the amazing people who make this possible.