STEP 6. Add entity extension child collection support

This feature makes it possible to render in the data form the extended model with a transient data entity of type collection.

The perquisite is for this feature is to access the Evolutive Data Core -> Data Model Explorer -> Business Entities List -> select the desired entity -> Extended Model. The external model needs to be linked to a extension type of transient data with the display model collection, not a single instance.

1. Open the UI designer in the data form.
2. Select the Entity Extension Container, drag and drop it.
3. Select the entity extension needed and configured in the Extended Model.
4. Select the type of view/ collapse/ no refresh/ no toolbar viewing mode. Click the ''Insert Entity extension''.
5. Click the ''Apply changes'' button.
6. Click the ''Update Template''.
7. Click the ''Save and reload'' button. Repeat for any other data form. Optionally, attach the data form to the Portal to see the result in the Portal. For more information, see Creating Dashboards.