how to sort data in two at once custom tables on form.php

I have this form

I can do the sort in the top table, but I can not do in the bottom. How to make it possible to sort immediately in 2 tables?

my file structure

code on form.php

 protected function _prepareForm()
    {
        $form = new Varien_Data_Form(array(
            "id" => "edit_form",
            "action" => $this->getUrl("*/*/addhdd"),
            "method" => "post",

        ));
        $this->setForm($form);

        $arrayResults = Mage::registry('arrayResults');
        $fieldset = $form->addFieldset("hdd_form");
        $fieldset->addType('customer_grid', 'DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customergrid');
        $fieldset->addType('customer_grid_pcb', 'DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customerpcb');

        $fieldset->addField('table_id', 'customer_grid', array(
            'label'     => Mage::helper('customer')->__('Purchase Wizard Table'),
            'class'     => 'required-entry',
            'name'      => 'table_id',
            'onchange' => "",
            'disabled' => false,
            'readonly' => false,
            'tabindex' => 1,
        ));

        $fieldset->addField('serial_number', 'text', array(
            'label'     => Mage::helper('testing')->__('Serial Number'),
            'required'  => true,
            'name'      => 'serial_number',
            'disabled'  => false,
            'tabindex'  => 1,
        ));


        $fieldset->addField('test_result', 'select', array(
            'label' => Mage::helper('testing')->__('Test Result'),
            'required' => true,
            'tabindex' => 1,
            'name' => 'test_result',
            'options' => $arrayResults
        ));

        $fieldset->addField('lot_id', 'text', array(
            'label'     => Mage::helper('testing')->__('Lot id'),
            'name'      => 'lot_id',
            'disabled'  => false,
            'tabindex'  => 1,
        ));

//        $fieldset->addField('revision', 'text', array(
//            'label' => Mage::helper('testing')->__('Revision'),
//            'tabindex' => 1,
//            'name' => 'revision',
//        ));
//
//
//        $fieldset->addField('controller_chip', 'text', array(
//            'label' => Mage::helper('testing')->__('Controller chip'),
//            'tabindex' => 1,
//            'name' => 'controller_chip',
//        ));

        $fieldset->addField('pcb_id', 'customer_grid_pcb', array(
            'label'     => Mage::helper('customer')->__('Customer PCB SKU table'),
            'class'     => 'required-entry',
            'name'      => 'pcb_id',
            'onchange' => "",
            'disabled' => false,
            'readonly' => false,
            'tabindex' => 1,
        ));

        $fieldset->addField('purchasewizard_id', 'hidden', array(
            'name' => 'purchasewizard_id',
            'class' => 'purchasewizard_id'
        ));

        $form->setUseContainer(true);
        return parent::_prepareForm();

    }

code on customerpcb.php

< ?php
class DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customerpcb extends Varien_Data_Form_Element_Abstract{
    protected $_element;

    public function getElementHtml()
    {
        return Mage::helper('core')->getLayout()->createBlock('testing/adminhtml_testing_hdd_form_renderer_fieldset_customer_gridpcb')->toHtml();
    }
}

code on customergrid.php

< ?php
class DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customergrid extends Varien_Data_Form_Element_Abstract{
    protected $_element;

    public function getElementHtml()
    {
        return Mage::helper('core')->getLayout()->createBlock('testing/adminhtml_testing_hdd_form_renderer_fieldset_customer_grid')->toHtml();
    }
}

code on gridpcb.php

class DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customer_Gridpcb extends Mage_Adminhtml_Block_Widget_Grid
{

    public function __construct()
    {
        parent::__construct();
        $this->setId('customerGrid');
        $this->setDefaultSort('entity_id');
    }

    protected function _prepareCollection()
    {
        $collection = Mage::getModel('listingwizard/listingtemplate')->getCollection();
        $this->setCollection($collection);

        return parent::_prepareCollection();
    }

    protected function _prepareColumns()
    {
        $this->addColumn("revision", array(
            "header" => Mage::helper("listingwizard")->__("PCB Revision"),
            "index" => "revision"
        ));

        $this->addColumn("controllerchip", array(
            "header" => Mage::helper("listingwizard")->__("Controller Chip"),
            "index" => "controllerchip"
        ));

        return parent::_prepareColumns();
    }

    protected function _prepareMassaction()
    {
        $this->setMassactionIdField('id');
        $this->getMassactionBlock()->setFormFieldName('pcb_ids');

        return $this;
    }
}

code on grid.php

class DaniilKrok_Testing_Block_Adminhtml_Testing_Hdd_Form_Renderer_Fieldset_Customer_Grid extends Mage_Adminhtml_Block_Widget_Grid
{

    public function __construct()
    {
        parent::__construct();
        $this->setId('customerGrid');
        $this->setDefaultSort('entity_id');
    }

    protected function _prepareCollection()
    {
        $collection = Mage::getModel("purchasewizard/groupdata")->getCollection();
        $this->setCollection($collection);

        return parent::_prepareCollection();
    }

    protected function _prepareColumns()
    {
        $this->addColumn("id", array(
            "header" => Mage::helper("purchasewizard")->__("Id"),
            "index" => "id",
            "column_css_class" => "id",
        ));

        $this->addColumn("model", array(
            "header" => Mage::helper("purchasewizard")->__("Model"),
            "index" => "model",
            "width" => "300px",
            'column_css_class' => 'model_dynamic_class'
        ));

        $this->addColumn("pn_hddcode_2ndmodel", array(
            "header" => Mage::helper("purchasewizard")->__("Spec 1"),
            "index" => "pn_hddcode_2ndmodel",
            "width" => "300px",
             'column_css_class' => 'spec_1_dynamic_class'
        ));

        $this->addColumn("mlc_fw_sitecode_dcm", array(
            "header" => Mage::helper("purchasewizard")->__("Spec 2"),
            "index" => "mlc_fw_sitecode_dcm",
            "width" => "300px",
            'column_css_class' => 'spec_2_dynamic_class'
        ));

        $this->addColumn("spec_3", array(
            "header" => Mage::helper("purchasewizard")->__("Spec 3"),
            "index" => "spec_3",
            "width" => "300px",
            'column_css_class' => 'spec_3_dynamic_class'
        ));

        $this->addColumn("spec_4", array(
            "header" => Mage::helper("purchasewizard")->__("Spec 4"),
            "index" => "spec_4",
            "width" => "300px",
            'column_css_class' => 'spec_4_dynamic_class'
        ));

        return parent::_prepareColumns();
    }

    protected function _prepareMassaction()
    {
        $this->setMassactionIdField('id');
        $this->getMassactionBlock()->setFormFieldName('ids');

        $this->getMassactionBlock()->addItem('refresh', array(
            'label'=> Mage::helper('purchasewizard')->__('Refresh')
        ));

        return $this;
    }
}