Odoo Form View

<odoo>
   <data>
       <record id="extend_view" model="ir.ui.view">
           <field name="name">Extend model view</field>
           <field name="model">model.name</field>
           <field name="inherit_id" ref="base.view.ref"/>
           <field name="arch" type="xml">
               <xpath expr="//page[last()]" position='after'>
                   <page string="Extra field">
                       <group string="Extra group title">
                           <field name="field_name"/>
                       </group>
                   </page>
               </xpath>
           </field>
       </record>
    </data>
  <odoo>

https://snippets.cacher.io/snippet/6262025fc18cc12fecee

How to make a nice form view for an odoo module.