HI, First time on this and total amature but I'm trying to add schema microdata (http://schema.org/SingleFamilyResidence) mark up to my site for. I have tried to modify the usual plug ins which are all tailored to a few of the data sets like book reviews etc where the data is on the page without any luck. I know the search engines want the data visible which it is but my site uses a system where I have another company that hosts my data and I provide them with a content wrapper. Thus, the mapping of the data fields needs to be in the wrapper page before it's populated. I tried the google webmasters visual data mapping but it too does not cover the single family residence data set. I've been wrestling with this for a week now so any help would be great.