layout.addView(CdmDataSourceViewPart.ID, IPageLayout.BOTTOM, 0.6f, TaxonNavigator.ID);
IFolderLayout folder = layout.createFolder("Folder", IPageLayout.BOTTOM, 0.6f, layout.getEditorArea());
folder.addView(DescriptiveViewPart.ID);
layout.addView(CdmDataSourceViewPart.ID, IPageLayout.BOTTOM, 0.6f, TaxonNavigator.ID);
IFolderLayout folder = layout.createFolder("Folder", IPageLayout.BOTTOM, 0.6f, layout.getEditorArea());
folder.addView(DescriptiveViewPart.ID);