# Conceptual Product Structure

## How to Display the Parallel Structure Overview

| ### What to do:
| To work through this example, you must first complete the example Create a multi-level Parallel Structure.
| Select Start > Bill of Materials > Product Component - Modular. The Product Componen modular mask is opened.
| Search for MDL-001 Pen.
| Select the Parallel Structures tab.
| Open the link in the Parallel Node field of the Maintenance view. The Parallel Structure mask is opened.
| Select Parallel Structure Overview from the context menu.
| The context menu of the main mask is different than the context menu of the table.
| The Parallel Structure Overview mask is opened.
| The complete structure with all assigned modules and its items is displayed.