Adds an object to a collection. For more information about how this works with a particular collection, click the name of that collection in the following list.
ElementExtensions
GroupingDefs
GroupLevels
LookupRelationships
PageFields
ParameterValues
RecordsetDefs
SchemaFields
SchemaParameters
SchemaRelatedFields
SchemaRowsources
SublistRelationships
WCAxes
WCCharts
WCDataLabelsCollection
WCDataSources
WCErrorbarsCollection
WCSeriesCollection
WCTrendlines