Property	Description
		Method Name	AddAt
		Argument - index	The position at which the item should be added, 0 for the beginning of the collection, using the value returned from GetCount() will add to the end.
		Argument - pCls	The class to be added to the collection.
		Description	Adds a class to the collection in a specific location
		Remarks	Causes the OnCollectionChange to be fired, after the class is added.