I am trying to add custom fields to the ticket table. So I've followed these steps.I've added a new header by modifying the $query_coloumns$queue_columns = array( 'severity' => array( 'width' => '7.4%', 'heading' => __('Severity'), ),I can see a $sort_options array - is this for the button on the right hand side?I've added the custom field to the $tickets->values$tickets->values('cdata__severity')This adds the field to the table. <td> <?php echo $T; ?> </td>I've added this case to the switch ($sort_cols) case 'severity': $tickets->order_by('cdata__severity', $orm_dir_r);^ I am unsure how to fix this sorting issue. Its not setting the dir - 0/1