contrato_cuotas/views/account_analytic_account.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <!-- ==========================================================
             FORMULARIO CONTRATO
        =========================================================== -->

        <record id="contrato_form_view" model="ir.ui.view">
            <field name="name">account.analytic.account.cuotas.form</field>
            <field name="model">account.analytic.account</field>
            <field name="inherit_id" ref="account_analytic_analysis.account_analytic_account_form_form"/>
            <field name="arch" type="xml">

                <field name="recurring_next_date" position="before">

                    <separator string="Control de Cuotas"/>

                    <group>

                        <field name="cuota_total"/>

                        <field name="nro_cuotas" readonly="1"/>

                        <field name="cuotas_restantes" readonly="1"/>

                        <field name="estado_cuotas" readonly="1"/>

                        <field name="porcentaje_cuotas"
                               widget="progressbar"
                               readonly="1"/>

                    </group>

                </field>

            </field>
        </record>


        <!-- ==========================================================
             CODIGO SOLO LECTURA
        =========================================================== -->

        <record id="contrato_form_view_codigo"
                model="ir.ui.view">

            <field name="name">account.analytic.account.code.readonly</field>

            <field name="model">account.analytic.account</field>

            <field name="inherit_id"
                   ref="analytic.view_account_analytic_account_form"/>

            <field name="arch" type="xml">

                <field name="code" position="replace">

                    <field name="code" readonly="1"/>

                </field>

            </field>

        </record>

    </data>
</openerp>