pwtgtm.xml

<?xml version="1.0" encoding="UTF-8"?>
<extension type="plugin" group="system" method="upgrade">
    <name>System - PWT GTM</name>
    <author>Perfect Web Team</author>
    <creationDate>2019-06</creationDate>
    <copyright>Copyright (C) 2019 Perfect Web Team</copyright>
    <license>GPLv3 http://www.gnu.org/licenses/gpl.html</license>
    <authorEmail>extensions@perfectwebteam.com</authorEmail>
    <authorUrl>https://github.com/perfectwebteam/pwt-gtm</authorUrl>
    <version>4.4.0</version>
    <description>PWT GTM - System plugin</description>
    <files>
        <filename plugin="pwtgtm">pwtgtm.php</filename>
    </files>
    <config>
        <fields name="params">
            <fieldset name="basic">
                <field
                    name="pwtgtm_id"
                    type="text"
                    label="Container ID"
                    default=""
                    description="Enter your GTM Container Public ID(GTM-XXXX)"
                />
            </fieldset>
        </fields>
    </config>
</extension>