Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
public CascadingParameterGroupHandle findCascadingParameterGroup(
			String groupName )
	{
		DesignElement element = module.findParameter( groupName );
		if ( element == null || !( element instanceof CascadingParameterGroup ) )
			return null;
		return (CascadingParameterGroupHandle) element.getHandle( element
				.getRoot( ) );
	}
	/**
	 * Returns a slot handle to work with the styles within the report. Note
	 * that the order of the styles within the slot is unimportant.
	 * 
	 * @return A handle for working with the styles.
	 */
	public SlotHandle getStyles( )
	{
		return getSlot( IReportDesignModel.STYLE_SLOT );
	}
	/**
	 * Gets a handle to deal with a translation. A translation is identified by
	 * its resourceKey and locale.
	 * 
	 * @param resourceKey
	 *            the resource key
	 * @param locale
	 *            the locale information
	 * 
	 * @return corresponding <code>TranslationHandle</code>. Or return
	 *         <code>null</code> if the translation is not found in the