# Conceptual Product Structure

## How to Create a Product Component within an existing Class

| ### What to do:
| Select Start > Classification > Classes The Class mask is opened.
| Search for Housing Material Upper.
| Select the Product Components tab.
| Select Create Product Component - Modular from the context menu. The Product Component - Modular mask is opened.
| Enter MDL-020 in the Component Number field and Upper Housing in the Name field.
| To save the entry click . The Product Component - Modular mask is closed and the new component is automatically entered in the Product Components tab of the Class mask.