SelectedGroupCollection.Insert Method

Name	Parameters	Description
Insert(Int32, IEnumerable<Object>)	index, groupPath	Inserts a group under the specified path (group values from the root to the group) to the collection at the specified index.
Insert(Int32, Object[])	index, groupPath	Inserts a group under the specified path (group values from the root to the group) to the collection at the specified index.