The integration does not list what area it’s in, only what area’s it’s cleaned. So it’s not possible to turn on lights as it moves throughout a full cleaning process, however you could turn all lights on and them turn them off as it moves through the house.
FYI, you can search the forums for anything. I did not know how to clean specific rooms so I simply searched for “Roomba clean specific rooms” and the first choice was this post with a step by step guide on how to do it.