Converted several grids from Magento\Sales module to new layout xml config format:

app/code/Magento/Backend/Block/Catalog/Product/Tab/Container.php

@@ -31,39 +31,31 @@ class Container extends \Magento\Backend\Block\Template
 {
 
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return '';
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {
         return $this->getTabLabel();
     }
 
     /**
-     * Can show tab in tabs
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {
         return true;
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isHidden()
     {

app/code/Magento/Backend/Block/Widget/Tab.php

@@ -29,39 +29,31 @@
 class Tab extends \Magento\Backend\Block\Template implements TabInterface
 {
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return $this->getLabel();
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {
         return $this->getTitle();
     }
 
     /**
-     * Can show tab in tabs
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {
         return $this->hasCanShow() ? (bool) $this->getCanShow() : true;
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isHidden()
     {

app/code/Magento/Catalog/Block/Adminhtml/Product/Edit/Tab/Alerts.php

@@ -77,9 +77,7 @@ public function getAccordionHtml()
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {

app/code/Magento/DesignEditor/Block/Adminhtml/Theme/Selector/Tab/AbstractTab.php

@@ -34,29 +34,23 @@ abstract class AbstractTab
     implements \Magento\Backend\Block\Widget\Tab\TabInterface
 {
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return $this->getTabTitle();
     }
 
     /**
-     * Can show tab in tabs
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {
         return true;
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isHidden()
     {

app/code/Magento/DesignEditor/Block/Adminhtml/Theme/Selector/Tab/Available.php

@@ -44,9 +44,7 @@ protected function _toHtml()
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {

app/code/Magento/DesignEditor/Block/Adminhtml/Theme/Selector/Tab/Customizations.php

@@ -42,9 +42,7 @@ protected function _construct()
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {

app/code/Magento/GoogleOptimizer/Block/Adminhtml/AbstractTab.php

@@ -108,19 +108,15 @@ protected function _getGoogleExperiment()
     protected abstract function _getEntity();
 
     /**
-     * Can show tab in tabs
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {
         return $this->_helperData->isGoogleExperimentActive();
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isHidden()
     {

app/code/Magento/GoogleOptimizer/Block/Adminhtml/Catalog/Product/Edit/Tab/Googleoptimizer.php

@@ -44,19 +44,15 @@ protected function _getEntity()
     }
 
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return __('Product View Optimization');
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {

app/code/Magento/GoogleOptimizer/Block/Adminhtml/Cms/Page/Edit/Tab/Googleoptimizer.php

@@ -44,19 +44,15 @@ protected function _getEntity()
     }
 
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return __('Page View Optimization');
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {

app/code/Magento/GroupedProduct/Block/Product/Grouped/AssociatedProducts.php

@@ -36,9 +36,7 @@ protected function _construct()
     }
 
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {

app/code/Magento/Payment/Model/Resource/Grid/GroupsArray.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Magento
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://opensource.org/licenses/osl-3.0.php
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@magentocommerce.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade Magento to newer
+ * versions in the future. If you wish to customize Magento for your
+ * needs please refer to http://www.magentocommerce.com for more information.
+ *
+ * @category    Magento
+ * @package     Magento_Sales
+ * @copyright   Copyright (c) 2014 X.commerce, Inc. (http://www.magentocommerce.com)
+ * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+namespace Magento\Payment\Model\Resource\Grid;
+
+/**
+ * Sales transaction types option array
+ */
+class GroupsArray implements \Magento\Core\Model\Option\ArrayInterface
+{
+    /**
+     * Payment data
+     *
+     * @var \Magento\Payment\Helper\Data
+     */
+    protected $_paymentData;
+
+    /**
+     * @param \Magento\Payment\Helper\Data $paymentData
+     */
+    public function __construct(\Magento\Payment\Helper\Data $paymentData)
+    {
+        $this->_paymentData = $paymentData;
+    }
+
+    /**
+     * Return option array
+     *
+     * @return array
+     */
+    public function toOptionArray()
+    {
+        return $this->_paymentData->getPaymentMethodList(true, true, true);
+    }
+}

app/code/Magento/Payment/Model/Resource/Grid/TypesArray.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Magento
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://opensource.org/licenses/osl-3.0.php
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@magentocommerce.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade Magento to newer
+ * versions in the future. If you wish to customize Magento for your
+ * needs please refer to http://www.magentocommerce.com for more information.
+ *
+ * @category    Magento
+ * @package     Magento_Sales
+ * @copyright   Copyright (c) 2014 X.commerce, Inc. (http://www.magentocommerce.com)
+ * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+namespace Magento\Payment\Model\Resource\Grid;
+
+/**
+ * Sales transaction payment method types option array
+ */
+class TypesArray implements \Magento\Core\Model\Option\ArrayInterface
+{
+    /**
+     * Payment data
+     *
+     * @var \Magento\Payment\Helper\Data
+     */
+    protected $_paymentData;
+
+    /**
+     * @param \Magento\Payment\Helper\Data $paymentData
+     */
+    public function __construct(\Magento\Payment\Helper\Data $paymentData)
+    {
+        $this->_paymentData = $paymentData;
+    }
+
+    /**
+     * Return option array
+     *
+     * @return array
+     */
+    public function toOptionArray()
+    {
+        return $this->_paymentData->getPaymentMethodList(true);
+    }
+}

app/code/Magento/Sales/Block/Adminhtml/Billing/Agreement/View/Tab/Info.php

@@ -64,39 +64,31 @@ public function __construct(
     }
 
     /**
-     * Return Tab label
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabLabel()
     {
         return __('General Information');
     }
 
     /**
-     * Return Tab title
-     *
-     * @return string
+     * {@inheritdoc}
      */
     public function getTabTitle()
     {
         return __('General Information');
     }
 
     /**
-     * Can show tab in tabs
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function canShowTab()
     {
         return true;
     }
 
     /**
-     * Tab is hidden
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isHidden()
     {