applications/commonext/widget/SystemInfoMenus.xml

<?xml version="1.0" encoding="UTF-8"?>
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<menus xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://ofbiz.apache.org/Widget-Menu" xsi:schemaLocation="http://ofbiz.apache.org/Widget-Menu http://ofbiz.apache.org/dtds/widget-menu.xsd">

    <menu name="SystemInfoNotes">
        <menu-item name="deleteAll" title="${uiLabelMap.CommonDeleteAll}">
            <link target="deleteAllSystemNotes"/>
        </menu-item>
        <menu-item name="createPublicMsg" title="${uiLabelMap.CommonExtCreatePublicMessage}">
            <condition>
                <if-has-permission permission="COMMONEXT_PUBLMSG"/>
            </condition>
            <link target="${parameters._LAST_VIEW_NAME_}">
                <parameter param-name="portalPageId" from-field="parameters.portalPageId"/>
                <parameter param-name="createPublicMsg" value="true"/>
            </link>
        </menu-item>
    </menu>
    
</menus>