This record is used to generate data_item_name records on all nodes located on the specified geometrical entity. The values for the data_item_name should be specified in the area_node_dataitem_double record for real precision values, or in the area_node_dataitem_integer record for integer values (or words).
This allows you to set records like node_boundary or so for nodes located in geometries, without finding out yourself which nodes are located on the geometry.