Adding namespaces to screens using extensibility in the web UI framework

You can use extensibility in the web UI framework to add namespaces to screens.

1. Select the screen in the Tree View.
2. Type namespaces in the Properties View.
3. For every source and target namespace added, you need to provide a name and description. It is recommended that the names of all namespaces added during extensibility begin with extn_ to easily identify them.
   Note: The methods getTargetModel(), getModel(), and setModel() can be called from the extension and would return results from the combined model of the screen and extension.