You could do this by editing the template.xml file, or with code in the OnLoad event.
Editing the template.xml would entail simply adding the appropriate xml to display by default. In this case it would be five instances of the row that you are talking about. To get at the template.xml if you are not using managed code choose Extract Form files from the File menu, choose a folder to extract to, and then open the template.xml in a text editor.
Using code in the OnLoad event handler would create a clone of the row, and use the appendChild() method to add the rows programmatically.
I wold recommend editing template.xml. Hope this helps!
Matt Faus / Microsoft InfoPath MVPQdabra® Software / Streamline data gathering to turn process into knowledge