The method
IpfcDetailGroupItem.Draw() temporarily draws a detail group item, so that it is removed during the next draft generation.
The method
IpfcDetailGroupItem.Erase() temporarily undraws a detail group item, so that it is redrawn during the next draft generation.
The method
IpfcDetailGroupItem.Modify() changes the definition of a detail group item based on the data object that describes how to construct a detail group item.