tryton/modules/sale_subscription/view/subscription_form.xml

<?xml version="1.0"?>
<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
this repository contains the full copyright notices and license terms. -->
<form col="6">
    <label name="party"/>
    <field name="party"/>
    <label name="contact"/>
    <field name="contact"/>
    <label name="number"/>
    <field name="number"/>

    <label name="invoice_party"/>
    <field name="invoice_party"/>
    <label name="invoice_address"/>
    <field name="invoice_address"/>
    <newline/>

    <label name="description"/>
    <field name="description" colspan="3"/>
    <label name="reference"/>
    <field name="reference"/>

    <notebook colspan="6">
        <page string="Subscription" id="subscription">
            <label name="start_date"/>
            <field name="start_date"/>
            <label name="end_date"/>
            <field name="end_date"/>
            <label name="invoice_start_date"/>
            <group col="-1" id="invoice_dates">
                <field name="invoice_start_date"/>
                <label name="next_invoice_date"/>
                <field name="next_invoice_date"/>
            </group>
            <label name="invoice_recurrence"/>
            <field name="invoice_recurrence"/>
            <label name="payment_term"/>
            <field name="payment_term"/>
            <label name="currency"/>
            <field name="currency"/>
            <field name="lines" colspan="4"
                view_ids="sale_subscription.subscription_line_view_list_sequence"/>
        </page>
        <page string="Other Info" id="other">
            <label name="company"/>
            <field name="company"/>
            <newline/>
            <label name="quoted_by"/>
            <field name="quoted_by"/>
            <label name="run_by"/>
            <field name="run_by"/>
        </page>
    </notebook>
    <label name="state"/>
    <field name="state" colspan="2"/>
    <group col="-1" colspan="3" id="buttons" yfill="1">
        <button name="cancel"/>
        <button name="draft"/>
        <button name="quote"/>
        <button name="run"/>
    </group>
</form>