Structures Collection Properties: Item 
Purpose
Retrieves a Structure object from a Structures collection object.
Syntax
The Item property has the syntax:
Object Item(Variant vaIndex)
Description
The Item property returns a
structure object. The parameter vaIndex identifies the Structure object to be returned. This may either be the Index or the Name of the Structure object. A further method for retrieving an item is to invoke the item’s name directly as a property. (See also Named Collection).
Dim Structures As Object
Set Structures = Tree.Structures
Structures.Add("ItemA")
Structures.Add("ItemB")
Structures.ItemA.Type = TreeStructureText