InfoPath Dev

Hello, I don't know if this helps, but I am able to pull email based on a look up table and a (Drop Down field) of different user Groups from a SharePoint List form using InfoPath Double Eval function. Here is what I have (this is with the Edit Xpath (Advanced) ...

Thanks for such a quick response.  I was hoping that someone might have an example out there that might help me go in the right direction on this.  I knew that code would be involved, but I am unfamiliar with XML and I am just getting started on figuring this out.  Any help on this would be greatly appreciated.  

I have a question that is somewhat related to this topic.  I would like to be able to have a text box where users can input the amount of rows they would like to have copied based on the default values of the last row so that when the button is pressed the info that was inputed is generated multiple times based on the input value of the text ...

I tried this out and it works great.  Except now I would like to have the end row be the row that is cloned.  So instead of putting the Value of row[1], is there another value I can input to point out that I want the last row to be cloned?