DCC Ready 2 Bil and 2 Hal

Hi All.  Being a Southern fan when the Hornby 2 Bil and 2 Hal went on sale, I went ahead and purchased both, but I hav only run them on direct current, so far? But I will get around to converting the both of them. I have just noticed the “ You Choos “ sound is available for them, has anyone bothered with this, and is it straight forward??Best wishes Kevin