My_GtkUi/Gtk4_Reset/res/text_menu.xml

<?xml version="1.0" encoding="UTF-8"?>
<interface>
    <menu id="text_menu">
        <section>
            <item>
                <attribute name="label">Open</attribute>
                <attribute name="action">win.text_open</attribute>
                <attribute name="accel">&lt;Control&gt;o</attribute>
            </item>
            <item>
                <attribute name="label">Save</attribute>
                <attribute name="action">win.text_save</attribute>
                <attribute name="accel">&lt;Control&gt;s</attribute>
            </item>
            <item>
                <attribute name="label">Save As</attribute>
                <attribute name="action">win.text_saveas</attribute>
                <attribute name="accel">&lt;Control&gt;&lt;Shift&gt;s</attribute>
            </item>
            <item>
                <attribute name="label">Copy</attribute>
                <attribute name="action">win.text_copy</attribute>
                <attribute name="accel">&lt;Control&gt;c</attribute>
            </item>
            <item>
                <attribute name="label">Paste</attribute>
                <attribute name="action">win.text_paste</attribute>
                <attribute name="accel">&lt;Control&gt;v</attribute>
            </item>
            <item>
                <attribute name="label">Close</attribute>
                <attribute name="action">win.text_close</attribute>
            </item>
            <item>
                <attribute name="label">About</attribute>
                <attribute name="action">win.text_about</attribute>
            </item>
        </section>
    </menu>
</interface>