The Add method of a Decision Support Objects (DSO) collection adds an object to the collection. This method does not apply to CustomProperties collections.
Note It is recommended that you use the AddNew method when adding new objects, and only use the Add method when adding existing objects, such as when adding aggregations to a partition after you have designed aggregations. For more information, see clsPartitionAnalyzer.
colCollection.Add(Item, [sKey], [before])
Note All collections in the DSO object model are one-based. That is, the first item in the collection has an index of 1 and the last item has an index of Count.