docx_report_generation/views/res_partner_contract_annex.xml

<?xml version='1.0' encoding='utf-8'?>
<odoo>
    <data noupdate="0">

        <!-- res.partner.contract.annex form view -->
        <record id="res_partner_contract_annex_view_form" model="ir.ui.view">
            <field name="name">res.partner.contract.annex.view.form</field>
            <field name="model">res.partner.contract.annex</field>
            <field name="arch" type="xml">

                <form string="Contract Annex">
                    <sheet>
                        <group name="options" invisible="1">
                            <field name="display_name" invisible="1"/>
                            <field name="payment_term" invisible="1"/>
                            <field name="delivery_time" invisible="1"/>                       
                        </group>
                        <group name="info" string="Info">
                            <field name="name" placeholder="Leave empty for compute"/>
                            <field name="contract_id" attrs="{'invisible': [('contract_id', '=', False)]}"/>
                            <field name="order_id" options="{'no_create': True}"/>
                            <field name="date_conclusion"/>
                        </group>
                        <group name="design" string="Design">
                            <field name="design_cost"/>
                            <field name="design_doc_period"/>
                            <field name="design_doc_cost"/>
                        </group>
                        <group name="delivery" string="Delivery">
                            <field name="delivery_address"/>
                            <field name="delivery_period"/>
                        </group>
                        <group name="installation" string="Installation">
                            <field name="installation_address"/>
                            <field name="installation_period"/>
                            <field name="installation_cost"/>
                        </group>
                        <group name="payment" string="Payment">
                            <field name="total_cost"/>
                            <field name="payment_part_one" widget="integer"/>
                            <field name="payment_part_two" widget="integer"/>
                            <field name="payment_part_three" widget="integer"/>
                        </group>
                    </sheet>
                </form>

            </field>
        </record>

    </data>
</odoo>