Hello,

I would want to add a new group for an application in Odoo 8. 

E.g.:
Add the group "New sales group" to "Sale" application.
I did it from the Groups menu, but after save the new group, I can't see anymore the line with Sales options at the User menu. I'm not sure if this is a bug or if there is a workaround. I'm also tried to do it from code with the same results. 

So, the question: Is there a workaround to have another custom group for an application?

Update (23/01/2015):
E.g. This is the code which doesn't work. Added at addons/sale/security/sale_security.xml:

    <!-- New group -->
    <record id="base.group_sale_salesman_new_sales_group" model="res.groups">
        <field name="name">New Sales Group</field>
        <field name="category_id" ref="base.module_category_sales_management"/>
        <field name="implied_ids" eval="[(4, ref('base.group_sale_salesman'))]"/>
    </record>

    <!-- This is the default manager group for Sale application-->
    <record id="base.group_sale_manager" model="res.groups">
        <field name="name">Manager</field>
        <field name="comment">the user will have an access to the sales configuration as well as statistic reports.</field>
        <field name="category_id" ref="base.module_category_sales_management"/>
        <field name="implied_ids" eval="[(4, ref('base.group_sale_salesman_all_leads'))]"/>
        <field name="users" eval="[(4, ref('base.user_root'))]"/>
    </record>

Thank you in advance.

Regards.
Alejandro