this.occur.min = "3";

LiveCycle Designer ES comes with a helpful sample file:
EN > Samples > Forms > Purchase Order > Dynamic Interactive > Forms

...that has a table that, when it initializes, displays 3 detail rows even though there is only one row defined in the hierarchy. The table also has Add Row and Delete Row buttons. This is exactly what I want to do in my own form. However, although I got my Add and Delete buttons to work, I cannot figure out how to initialize the form with >1 detail row. Even when I examine the scripted events on the Purchase Order sample form, I cannot locate the script that generates 3 detail rows.

And, I cannot get this feature to work in my own form, either. Does anyone know what object and event is associated with this script?