install.xml

<?xml version="1.0" encoding="utf-8"?>
<modification>
    <code>seqr_refund</code>
    <name>SEQR Refund Menu link</name>
    <version>1.0</version>
    <author>Kamil Manka</author>
    <link>http://seqr.com</link>


    <file path="admin/controller/common/menu.php">
        <operation>
            <search trim="true"><![CDATA[
            $data['text_catalog'] = $this->language->get('text_catalog');
            ]]>
            </search>
            <add position="after"><![CDATA[
             $data['seqr_refund_link'] = $this->url->link('payment/seqr_refund', 'token=' . $this->session->data['token'], 'SSL');
             $data['seqr_refund_text'] = "SEQR Refund";
            ]]>
            </add>
        </operation>
    </file>

    <file path="admin/view/template/common/menu.tpl">
        <operation>
            <search trim="true"><![CDATA[
            <li><a href="<?php echo $return; ?>"><?php echo $text_return; ?></a></li>
            ]]>
            </search>
            <add position="after"><![CDATA[
             <li><a href="<?php echo $seqr_refund_link ?>"><?php echo $seqr_refund_text ?></a></li>
            ]]>
            </add>
        </operation>
    </file>
</modification>