I'm scratching my head to find a way to change the default filter of the customer view et eventually other views too.

My filter is created, but I just don't know how to change the actual default filter to "Customer + My Filter"... I want to inherit this windows action to add my extra search_default. Is it possible???

        <record id="action_partner_form" model="ir.actions.act_window">
            <field name="name">Customers</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">res.partner</field>
            <field name="view_type">form</field>
            <field name="view_mode">kanban,tree,form</field>
            <field name="context">{"search_default_customer":1}</field>
            <field name="search_view_id" ref="view_res_partner_filter"/>
            <field name="help" type="html">
              <p class="oe_view_nocontent_create">
                Click to add a contact in your address book.
              </p><p>
                Odoo helps you easily track all activities related to
                a customer; discussions, history of business opportunities,
                documents, etc.
              </p>
            </field>
        </record>