Restricting users from adding Widgets to Widget Catalog

Hi,

I’ve just created a Widget Catalog on the server and released only to a set of people. I’ve given the default with Reader access in the ACL of the catalog. But still my users see the “Add Widget to Catalog” button on the Action bar. Anyway they are not able to add Widgets to the catalog on the server since they don’t have write access. But I want to hide that button to avoid confusion. How can I hide it?

Thanks.