odoo16/addons/point_of_sale/views/pos_bill_view.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record id="view_pos_bill_form" model="ir.ui.view">
        <field name="name">pos.bill.form</field>
        <field name="model">pos.bill</field>
        <field name="arch" type="xml">
            <form string="Bills">
                <sheet>
                    <group>
                        <field name="name" />
                        <field name="value" />
                        <field name="pos_config_ids" widget="many2many_tags" />
                    </group>
                </sheet>
            </form>
        </field>
    </record>

    <record id="view_pos_bill_tree" model="ir.ui.view">
        <field name="name">pos.bill.tree</field>
        <field name="model">pos.bill</field>
        <field name="arch" type="xml">
            <tree string="Bills" create="1" delete="1">
                <field name="name" />
                <field name="value" />
                <field name="pos_config_ids" widget="many2many_tags" />
            </tree>
        </field>
    </record>

    <record id="action_pos_bill" model="ir.actions.act_window">
        <field name="name">Coins/Bills</field>
        <field name="type">ir.actions.act_window</field>
        <field name="res_model">pos.bill</field>
        <field name="view_mode">tree,form</field>
    </record>

    <menuitem
        id="menu_pos_bill"
        name="Coins/Bills"
        parent="menu_point_config_product"
        sequence="4"
        action="action_pos_bill"
        groups="group_pos_manager"/>
</odoo>