In QlikView 10 it was possible to require that an extension dimension has a specific tag by adding Require="SpecificTag" in the Dimension element of the definition.xml. It ensured that only fields tagged with "SpecificTag" would be shown in the fields dropdown list in the extension properties page. It does not seem to work anymore in version 11. I attached a simple extension and a document exhibiting the problem. Am I doing something wrong or is it a bug?