Handles when a static item or list of items is specified for the data source, e.g. {F455CB4A-3E30-4C01-87BF-22300FD855F2} {F455CB4A-3E30-4C01-87BF-22300FD855F2}|{A7DA1824-02FE-4BF7-9817-297A7F0C29C4} /sitecore/content/Home /sitecore/content/Home:nameOfMultilistField [pulls the list of IDs on that multilist field on the target item as data sources] /sitecore/content/Home|/sitecore/templates