# Conceptual Product Structure

## How to Copy a Structure Element into a Different Modular BOM

| ### What to do:
| To work through this example, the following values have to be added to the example data:
Component | Value
Product Family | Fountain Pen
Product Variant | Fountain Pen Junior
Component Name | Only for the purpose of this example, please assign the MDL-001 Pen component to the Fountain Pen product family as described in Modular BOM section.
| Select Start > Bill of Materials > Product Component - Modular. The Product Component - Modular mask is opened.
| Search for MDL-001 Pen.
| Select Modular BOM Overview from the context menu.
| The overview makes it easier to decide which structure can be moved and where to.
| In the structure of MDL-001 Pen search for MDL-008 Lower Body Complete and open its Module mask. The Module mask is opened.
| Select Copy Structure to... from the context menu. The opened mask is empty.
| Search for Fountain Pen in the Product Family field.
| The title of this mask informs you about the action that can be carried out.
| Select MDL-002 Upper Body Complete.
| Select Take entry from the context menu.
| When copying a structure element into another it has to be ensured that they do not contain the same position numbers. Otherwise, an error message is displayed in the message window and the structure element is not copied. Position <20> already exists or predecessor in wrong state!
| After the structure element was copied, the original structure element still exist.