Is there a reason why this does not work via rules applied to a repeating section? I have tried a rule on the repeating section (ie new inserts) to copy the value from the immediately preceding section related control to the related control in the new section. Using preceding-sibling the result always returns the original first row control value. Just curious if this is just me and my lack of understanding regarding xpath, in which case just say "yah" and I'll know its just me :) I generally do not get that involved in the UI design layer of infopath, but I thought maybe such a rule would work.