<search string="Search Procurement">
                    <field name="name"/>
                    <filter string="Archived" name="inactive" domain="[('active','=',False)]"/>
                    <group expand="0" string="Group by...">
                        <filter string="Route" name="groupby_route" context="{'group_by': 'route_id'}"/>
                        <filter string="Destination Location" name="groupby_location_dest" context="{'group_by': 'location_dest_id'}"/>
                        <filter string="Warehouse" name="groupby_warehouse" context="{'group_by': 'warehouse_id'}" groups="stock.group_stock_multi_warehouses"/>
                   </group>
                </search>