app/code/community/Adyen/Payment/Block/Adminhtml/System/Config/Fieldset/Gettingstarted.php
protected function _getHeaderCommentHtml($element)
    {
        $html = $element->getComment()
            ? '<div class="comment">' . $element->getComment() . '</div>'
            : '';
        $url = Mage::helper('adminhtml')->getUrl('adminhtml/ExportAdyenSettings');
        $html .= <<<HTML
<div class="button-container">
    <button type="button" class="button" id="{$element->getHtmlId()}-export" onclick="location.href='{$url}'">
        {$this->__('Export Settings')}
    </button>
</div>
HTML;

        return $html;
    }
protected function _getHeaderCommentHtml($element)
    {
        $html = $element->getComment()
            ? '<div class="comment">' . $element->getComment() . '</div>'
            : '';
        $url = Mage::helper('adminhtml')->getUrl('adminhtml/ExportAdyenSettings');
        $html .= <<<HTML
<div class="button-container">
    <button type="button" class="button" id="{$element->getHtmlId()}-export" onclick="location.href='{$url}'">
        {$this->__('Export Settings')}
    </button>
</div>
HTML;

        return $html;
    }
protected function _getHeaderCommentHtml ( $ element ) { $ html = $ element -> getComment ( ) ? '<div class="comment">' . $ element -> getComment ( ) . '</div>' : '' ; $ url = Mage :: helper ( 'adminhtml' ) -> getUrl ( 'adminhtml/ExportAdyenSettings' ) ; $ html .=  <<<HTML
<div class="button-container">
    <button type="button" class="button" id="{$element->getHtmlId()}-export" onclick="location.href='{$url}'">
        {$this->__('Export Settings')}
    </button>
</div>
HTML ; return $ html ; }
Return header comment part of html for fieldset
Add the Export Settings button

@param Varien_Data_Form_Element_Abstract $element
@return string
Return header comment part of html for fieldset Add the Export Settings button