account-financial-tools/account_move_line_purchase_info/security/account_security.xml

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

    <record id="group_account_move_purchase_info" model="res.groups">
        <field name="name">Purchase info in Journal Items</field>
        <field name="category_id" ref="base.module_category_accounting_and_finance"/>
        <field name="users" eval="[(4, ref('base.user_root'))]"/>
    </record>

</odoo>