res_groups.xml

<?xml version="1.0"?>
<odoo>

    <record id="res_groups_view_form" model="ir.ui.view">
        <field name="name">res.groups.form</field>
        <field name="model">res.groups</field>
        <field name="inherit_id" ref="base.view_groups_form"/>
        <field name="arch" type="xml">
            <xpath expr="//field[@name='model_access']//tree//field[@name='perm_unlink']" position="after">
                <field name="perm_export"/>
            </xpath>
            <xpath expr="//field[@name='model_access']//form//field[@name='perm_unlink']" position="after">
                <field name="perm_export"/>
            </xpath>
        </field>
    </record>

</odoo>