I am using odoo11, and i am working on the following code, that adds a menu item in the "action" dropdown for sale orders, in order for the user to confirm multiple sale orders at once:

Python:

class SaleOrderConfirmWizard(models.TransientModel):
    _name = "sale.order.confirm.wizard"
    _description = "Wizard - Sale Order Confirm"

    @api.multi
    def confirm_sale_orders(self):
        self.ensure_one()
        active_ids = self._context.get('active_ids')
        orders = self.env['sale.order'].browse(active_ids)
        for order in orders:
            print(order.id)
            if order.state in ['draft', 'sent']:
                order.action_confirm()
 

XML:

    <record id="view_confirm_sale_order" model="ir.ui.view">
        <field name="model">sale.order.confirm.wizard</field>
        <field name="arch" type="xml">
            <form string="Confirm Sale Orders">
                <footer>
                    <button name="confirm_sale_orders" string="Confirm" type="object" class="oe_highlight"/>
                    or
                    <button string="Cancel" class="oe_link" special="cancel" />
                </footer>
            </form>
        </field>
    </record>

    <record id="action_confirm_sale_order" model="ir.actions.act_window">
        <field name="name">Confirm Sale Orders</field>
        <field name="type">ir.actions.act_window</field>
        <field name="res_model">sale.order.confirm.wizard</field>
        <field name="view_type">form</field>
        <field name="view_mode">form</field>
        <field name="view_id" ref="view_confirm_sale_order" />
        <field name="target">new</field>
        <field name="multi">True</field>
    </record>

    <act_window id="confirm_sale_order"
        name="Confirm Sale Orders"
        src_model="sale.order"
        res_model="sale.order.confirm.wizard"
        view_type="form"
        view_mode="form"
        key2="client_action_multi"
        target="new"/>

Now, I may be blind, but I can't see anywhere the reference to the treeview (which is "sale.view_order_tree" if im not wrong) this stuff should appear in.

I wanted something similar for the "quotation" treeview, and i thought i had to change some view reference (quotations are still instances of "sale.order" model, so i guess i have to change nothing on the model side)...

But, as strange as it sounds, i cannot find in this code any reference to the sale order treeview to change. I am probably missing something very evident, so please forgive this pretty dumb question.

Thank you in advance

EDIT:

I can't really explain why, but now i can see the new menu item even in the quotation page (maybe i didn't refresh properly the page?). In any case, i'd like to know if its normal that there is no explicit reference to the view?