Details: <p><strong>Testing:</strong></p><p style="margin-left: 40px;">- Open a class in the catalogue tools.</p><p style="margin-left: 40px;">- From the &#39;Create/Add&#39; tab, click &#39;Add setting&#39;</p><p style="margin-left: 40px;">- Choose any setting from the list.&nbsp; (It should be added...)</p><p style="margin-left: 40px;">- Click the value field of the newly added setting, and click &#39;Catalogue tools/Delete setting&#39;</p><p style="margin-left: 40px;">NOTE: only setting that are overloading an setting existing on a higher level class should be allowed to get deleted.&nbsp; (Ex: the root setting of the component class should not be deletable...)</p>