account-financial-tools/account_menu/views/view_account_group.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="view_account_group_form" model="ir.ui.view">
        <field name="name">account.group.form</field>
        <field name="model">account.group</field>
        <field name="inherit_id" ref="account.view_account_group_form"/>
        <field name="arch" type="xml">
            <xpath expr="//group" position="after">
                <group>
                    <group id="links">
                        <label for="account_ids"/>
                        <field name="account_ids" widget="many2many" nolabel="1"
                               options="{'no_create_edit': True}"/>
                    </group>
                </group>
            </xpath>
        </field>
    </record>

    <menuitem id="account_group_menu"
              action="account.action_account_group_tree"
              sequence="50"
              parent="account.account_account_menu"/>

</odoo>