addons-meggit/base_meggit/security/security.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">

        <record model="ir.module.category" id="base_meggit.module_category_base_meggit">
            <field name="name">Custom Sales</field>
            <field name="sequence">16</field>
        </record>

        <record id="group_base_meggit_user" model="res.groups">
            <field name="name">User</field>
            <field name="category_id" ref="base_meggit.module_category_base_meggit"/>
        </record>

        <record id="group_base_meggit_manager" model="res.groups">
            <field name="name">Manager</field>
            <field name="category_id" ref="base_meggit.module_category_base_meggit"/>
            <field name="implied_ids" eval="[(4, ref('group_base_meggit_user'))]"/>
            <field name="users" eval="[(4, ref('base.user_root'))]"/>
        </record>

    </data>
</odoo>