I have to admit to being totally confused as rows and columns means absolutely nothing to me so I do not understand how you can track anything from that and the theme development link you have sent me I have scanned over and it does not reference rows and columns either. So I do not see how to do this task. Sorry if I am being thick but it seems to be beyond me as nothing is jelling together.
I don’t understand what you mean can you explain more clearly, what is a source markup and how do you trace it back? Greater detail required for your answer to be helpful to me although I appreciate you taking the time to answer. I am very very new to WordPress.
Thank you very much for the directing, I will take an indepth look at it.