# Embedding multiple representations

Use the ReadNested function to create a structure that inherits from other structures with different representations.

## About this task

In this example, you want to create a flat structure that embeds two existing XML structures.

## Procedure

1. Create a new empty structure with a Flat representation.
2. Create a Root element with the following properties:
   | Property | Value |
   | --- | --- |
   | Group Type | Sequence |
   | Data Type | None |

   For more information, see [Structure element properties](https://help.qlik.com/talend/en-US/data-mapper-user-guide/8.0/structure-element-properties).
3. Drag a ReadMapInput function in the IO/Database tab of the Root element.

   An I/O function is needed to enclose the ReadNested functions to be added in the next steps. In this example, ReadMapInput is used because there is no need for special I/O handling in this element. ![](https://help.qlik.com/talend/en-US/data-mapper-user-guide/Resources/images/embed_representations_01_root.png)
4. Create a new PurchaseOrders element under Root, then click the ... button to the right of the Inherits From field and select the structure Examples > Structures > PayPal > PurchaseOrder2.
5. In the Inherited Root drop-down list, select Use Everything.

   The child elements are added under PurchaseOrders.
6. Configure the following properties for the PurchaseOrders element:
   | Property | Value |
   | --- | --- |
   | Group Type | Sequence |
   | Data Type | None |
   | Initiator | <PurchaseOrders> |
   | Include Initiator? | Select this check box |
7. Drag a ReadNested function in the IO/Database tab, then double-click them and select the XML representation.

   ![](https://help.qlik.com/talend/en-US/data-mapper-user-guide/Resources/images/embed_representations_02_purchaseorders.png)
8. Create a new POs element under Root, then click the ... button to the right of the Inherits From field and select the structure Examples > Structures > Simple > POStandard > POFile.
9. In the Inherited Root drop-down list, select Use Everything.

   The child elements are added under POs.
10. Configure the following properties for the POs element:
    | Property | Value |
    | --- | --- |
    | Group Type | Sequence |
    | Data Type | None |
    | Initiator | <POs> |
    | Include Initiator? | Select this check box |
11. Remove the ReadURL function added automatically to the IO/Database tab and drag and drop a ReadNested function, then double-click it and select the XML representation.

    ![](https://help.qlik.com/talend/en-US/data-mapper-user-guide/Resources/images/embed_representations_03_pos.png)
12. Press Ctrl + S to save your structure.

## Results

You now have a flat structure that can embeds two XML structures. You can find an example of this structure used in a map in Other Projects > Examples > Maps > MultiInputOutput > PurchaseOrdersToMandP.