Bug 120918 Usability: Tabs above and below Layout Editor are confusing
In BIRT 2.0 (I'm using M3), the Layout Editor has tabs above and below the editor window to give the developer different views. Top: Normal, Master Page, Source Bottom: Layout, Preview, Script What is not clear initially from the UI is that the bottom choices are only available with the "Normal" top choice. In addition, the "Source" label is not clear -- implication is that this is (programatic) source code. The Usability team should look at this to determine what improvements could be made, but a suggestion would be to flatten this into a top set of tabs only: Report Layout, Master Page, Script, XML Report Design, Preview
UI/org.eclipse.birt.report.designer.ui.lib.explorer/src/org/eclipse/birt/report/designer/ui/lib/explorer/LibraryExplorerView.java
* @see #doCreatePage
	 */
	protected void doDestroyPage( IWorkbenchPart part, PageRec pageRecord )
	{
		IPage page = pageRecord.page;
		page.dispose( );
		pageRecord.dispose( );
	}
	/**
	 * Returns the active, important workbench part for this view.
	 * <p>
	 * When the page book view is created it has no idea which part within the
	 * workbook should be used to generate the first page. Therefore, it
	 * delegates the choice to subclasses of <code>PageBookView</code>.
	 * </p>
	 * <p>
	 * Implementors of this method should return an active, important part in
	 * the workbench or <code>null</code> if none found.
	 * </p>
	 * 
	 * @return the active important part, or <code>null</code> if none
	 */
	protected IWorkbenchPart getBootstrapPart( )
	{
		IWorkbenchPage page = getSite( ).getPage( );
		if ( page != null )
		{
			return page.getActiveEditor( );
		}
		return null;