Bug 182677 Crosstab can not be converted to template item
The logic in model to check if crosstab can be converted to template report item returns false, but it should be true. The related check code is at DesignElementHandle.canTransformToTemplate().
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
assert library != null;
		assert theme != null;
		
		
		String name = theme.getName( );
		assert !StringUtil.isBlank( name )
				&& ModelMessages.getMessage( IThemeModel.DEFAULT_THEME_NAME )
						.equals( name );
		NameSpace ns = library.getNameSpace( Module.THEME_NAME_SPACE );
		assert library.getModuleNameSpace( Module.THEME_NAME_SPACE )
				.canContain( name );
		ns.insert( theme );
		
		library.add( theme, ILibraryModel.THEMES_SLOT );
	}
	/**
	 * Uses the new name space of the current module for reference property
	 * values of the given element. This method checks the <code>content</code>
	 * and nested elements in it.
	 * 
	 * @param module
	 *            the module that <code>content</code> attaches.
	 * @param content
	 *            the element to revise
	 * @param nameSpace
	 *            the new name space
	 */
	public static void reviseNameSpace( Module module, DesignElement content,
			String nameSpace )
	{