Create an Order trait.

library/Centurion/Contrib/core/traits/Order/Model/DbTable.php

@@ -0,0 +1,38 @@
+<?php
+
+class Core_Traits_Order_Model_DbTable extends Centurion_Traits_Model_DbTable_Abstract
+{
+
+    protected $_requiredColumns = array('order');
+
+    public function init()
+    {
+        Centurion_Signal::factory('on_select_joinInner')->connect(array($this, 'onJoinInner'), $this->_model->getSelectClass());
+    }
+
+    /**
+     * add filters to the default select query
+     * @param $select Zend_Db_Table_Select
+     * @see Core_Traits_Version_Model_DbTable::onSelect()
+     */
+    public function onJoinInner($signal, $sender, $select, $name)
+    {
+        if (!$select instanceof Centurion_Db_Table_Select) {
+            return;
+        }
+
+        if (is_array($name)) {
+            $name = current($name);
+        }
+
+        if ($name !== $this->_model->info(Zend_Db_Table_Abstract::NAME)) {
+            return;
+        }
+
+        if (!Centurion_Db_Table_Abstract::getFiltersStatus()) {
+            return;
+        }
+
+        $select->order('auth_user.order asc');
+    }
+}

library/Centurion/Contrib/core/traits/Order/Model/DbTable/Interface.php

@@ -0,0 +1,6 @@
+<?php
+
+interface Core_Traits_Order_Model_DbTable_Interface
+{
+
+}

library/Centurion/Controller/CRUD.php

@@ -71,9 +71,9 @@ public function init()
                                                      )
         );
 
-        $this->view->sortable = $this->_sortable;
+        $this->view->sortable = $this->isSortable();
 
-        if ($this->_sortable && $this->_defaultOrder == null)
+        if ($this->isSortable() && $this->_defaultOrder == null)
             $this->_defaultOrder = 'order asc';
 
         $this->_formViewScript = sprintf('%s/form.phtml', $this->_request->getControllerName());
@@ -133,9 +133,21 @@ public function generateList()
         return parent::generateList();
     }
 
+    /**
+     * @return bool
+     */
+    public function isSortable()
+    {
+        if ($this->_getModel() instanceof Core_Traits_Order_Model_DbTable_Interface) {
+            return true;
+        }
+
+        return $this->_sortable;
+    }
+
     public function orderAction($rowset = null)
     {
-        if ($this->_sortable) {
+        if ($this->isSortable()) {
             $order = 0;
             foreach ($rowset as $row) {
                 $row->order = $order++;