Hi, i have a problem to remove the 'action_quotation_send' button from the header of sale order form
<record id="view_order_form" model="ir.ui.view">
<field name="name">sale.order.form</field>
<field name="model">sale.order</field>
<field name="arch" type="xml">
<form string="Sales Order" version="7.0">
<header>
....
<button name="action_quotation_send" string="Send by Email" type="object" states="draft" class="oe_highlight" groups="base.group_user"/>
<button name="action_quotation_send" string="Send by Email" type="object" states="sent,progress,manual" groups="base.group_user"/>
....
this is the code that I try to use to delete this two buttons from the header
<record model="ir.ui.view" id="view_order_form_ceo">
<field name="name">view_order_form_ceo</field>
<field name="model">sale.order</field>
<field name="inherit_id" ref="sale.view_order_form"/>
<field name="arch" type="xml">
<data>
<!--
<button name="action_quotation_send" position="replace" />
<xpath expr="/form/header/button[@name='action_quotation_send']"
position="replace" />
-->
<button name="action_quotation_send" position="attributes">
<attribute name="invisible">1</attribute>
</button>
</data>
</field>
</record>
none of the three options work
what is the code to remove this buttons from the view!!! I'm going crazy trying to do that.