Dynamic form layout - Ability to add new rows

[FaradayCage]

I've created a form with one row of inputs but I need to user to be able to add as many new rows as they want. Basically I need the Add Parameter button to work on this form. I've looked around for examples etc. but they all seem to be extending tables and the like. Just wondering how/if this is possible in my case?

Screenshot: http://img710.imageshack.us/img710/5...meterinput.png

Thanks