When you select a section, the Binding tab in the Object palette displays several data binding options. Options that are not specifically related to creating a data connection apply both to data bound to a data source and data saved to a file when the object is not bound to a data source.
Sets the name of the section. If existing sections in the table use the same name, the number beside the name identifies the instance for the current section. By default, sections have no name. See To name and rename objects.
See also 

Section properties in the Binding tab