# Conceptual Product Structure

## How to Create a multi-level Parallel Structure

| ### What to do:
| To work through this example, you must first complete the example Create 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 Node Number field of the Maintenance view. The Parallel Structure mask is opened.
| Select Replaceable Parts.
| Click . The Parallel Structure Node mask is opened.
| Select the Structure tab.
| To change to insert mode click . The Node Number is entered automatically.
| Enter Ornamental Ring in the Name field.
| To save the entry click .
| Repeat steps 8 - 10 and enter the following values:
Name
Cartridge
Press Button
| Before a view can be deleted, the assigned parallel structure and modules have to be deleted first.