The Name property is equivalent with the Name parameter of the Add method. The Key property of the serie defines the identifier of the serie. The Type property specifies the type of the serie (the way the data is represented). The Remove method removes a specific member from the Series collection, giving its identifier. The Clear method clears all series of the control. The Item property seturns a specific Serie of the Series collection, giving its identifier. Use the Position property retrieves or sets a value that indicates the position of the serie. You can use the Def(exSerieName) property to define a default name that will be automatically assigned to multiple newly created series. 

The "name" keyword retrieves the Name of the serie, which is the same value displayed in the legend. When used in ToolTipFormat or ValueFormat expressions, it shows this serie name on tooltips or data values, allowing you to reference the serie’s label consistently across the chart.