app.project.item(index).items
Description
An ItemCollection object containing Item object that represent the top-level contents of this folder.
Unlike the ItemCollection in the Project object, this collection contains only the top-level items in the folder. Top-level within the folder is not the same as top-level within the project. Only those items that are top-level in the root folder are also top-level in the Project.
Type
ItemCollection object; read only.