diff --git a/models/res_partner_contract_annex.py b/models/res_partner_contract_annex.py
index 1095018..29e8592 100644
--- a/models/res_partner_contract_annex.py
+++ b/models/res_partner_contract_annex.py
@@ -32,6 +32,26 @@ class ContractOrderAnnex(models.Model, IDocument, Extension):
         "account.payment.term", related="order_id.payment_term_id", readonly=True,
     )
 
+    development_period = fields.Integer("Product Development Period (days)",)
+
+    design_cost = fields.Float(string="Design Cost",)
+
+    design_doc_period = fields.Integer(string="Documentation Design Period (days)",)
+    design_doc_cost = fields.Float(string="Documentation Design Cost",)
+
+    delivery_address = fields.Char(string="Delivery Address",)
+    delivery_period = fields.Integer(string="Delivery Period (days)")
+
+    installation_address = fields.Char(string="Installation Address",)
+    installation_period = fields.Integer(string="Installation Period (days)",)
+    installation_cost = fields.Integer(string="Installation Cost",)
+
+    total_cost = fields.Float(string="Total Cost",)
+
+    payment_part_one = fields.Float(string="Payment 1 Part (%)", default=100)
+    payment_part_two = fields.Float(string="Payment 2 Part (%)",)
+    payment_part_three = fields.Float(string="Payment 3 Part (%)",)
+
     @api.onchange("order_id")
     def _onchange_order_id(self):
         contract_number = self.contract_id.name
diff --git a/views/res_partner_contract_annex.xml b/views/res_partner_contract_annex.xml
index fd2afe7..e4215c6 100644
--- a/views/res_partner_contract_annex.xml
+++ b/views/res_partner_contract_annex.xml
@@ -10,18 +10,40 @@
 
                 <form string="Contract Annex">
                     <sheet>
-                        <group>
-                            <field name="name" placeholder="Leave empty for compute"/>
+                        <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"/>
-                            <field name="payment_term" invisible="1"/>
-                            <field name="delivery_time" invisible="1"/>
+                        </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>