odoo_management/views/payment_plan.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <!-- payment.plan tree view -->
        <record id="odoo_management.payment_plan_tree" model="ir.ui.view">
            <field name="name">payment.plan.tree</field>
            <field name="model">payment.plan</field>
            <field name="arch" type="xml">
                <tree>
                    <field name="name" />
                    <field name="amount" />
                </tree>
            </field>
        </record>

        <!-- payment.plan form view -->
        <record id="odoo_management.payment_plan_form" model="ir.ui.view">
            <field name="name">payment.plan.form</field>
            <field name="model">payment.plan</field>
            <field name="arch" type="xml">
                <form>
                    <sheet>
                        <div class="oe_title oe_left">
                            <label class="oe_edit_only" for="name" string="Name" />
                            <h1>
                                <field name="name" class="oe_inline" />
                            </h1>
                        </div>
                        <group>
                            <group string="Información de pago">
                                <field name="amount" />
                            </group>
                            <group string="Información del servicio">
                                <field name="storage_limit" />
                                <field name="ttl" />
                            </group>
                        </group>
                    </sheet>
                </form>
            </field>
        </record>
    </data>
</openerp>