Mhh a bit problematic - cause I dont know the correct english translation.
repeading section maybee.
When I am in the InfoPath Designer - there are the standard controlls and then the repeading and optional controlls. There I can find the repeading section/chapter - whatever. When I use this in a form I can insert/delete this section repeadingly with a rightclick to the meneu bubble in the section. For this behavior I need to use a normal Button - just the same behavior but with a real button as control.