trytond-product_cost_plan/view/cost_plan_form.xml

<?xml version="1.0"?>
<!-- The COPYRIGHT file at the top level of this repository contains the full
     copyright notices and license terms. -->
<form col="6" cursor="product">
    <label name="number"/>
    <field name="number"/>
    <label name="name"/>
    <field name="name"/>
    <label name="active"/>
    <field name="active"/>
    <newline/>
    <label name="product"/>
    <field name="product"/>
    <label name="quantity"/>
    <field name="quantity"/>
    <label name="uom"/>
    <field name="uom"/>
    <label name="bom"/>
    <field name="bom"/>
    <button name="compute" colspan="2"/>
    <notebook colspan="6">
        <page string="Products" id="products">
            <field name="products" colspan="4"/>
            <label name="products_cost"/>
            <field name="products_cost"/>
        </page>
        <page id="costs" string="Costs">
            <field name="costs" colspan="4"/>
        </page>
        <page string="BOM Configuration" id="configuration">
            <field name="boms" colspan="4"/>
        </page>
        <page string="Notes" id="notes">
            <field name="notes" colspan="4"/>
        </page>
    </notebook>
    <label name="cost_price"/>
    <field name="cost_price"/>
    <label name="product_cost_price"/>
    <field name="product_cost_price"/>
    <button name="update_product_cost_price"
        string="Update Product's Cost Price" colspan="2"
        confirm="It will modify the product's field loosing the current value. Are you sure?"/>
</form>