[IMP] big refactoring :

use event_type instead of product_product

event_type_button_box/__manifest__.py

@@ -0,0 +1,17 @@
+# Copyright 2016-2020 Akretion France (<https://www.akretion.com>)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+{
+    "name": "Event type button box",
+    "version": "16.0.1.0.0",
+    "license": "AGPL-3",
+    "author": "Elabore",
+    "website": "https://www.elabore.coop",
+    "category": "",
+    "depends": ["event"],
+    "data": [        
+        'views/event_type_views.xml',         
+    ],    
+    "installable": True,
+}

event_type_button_box/views/event_type_views.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="event_type_form_view" model="ir.ui.view">
+        <field name="name">event.type.form</field>
+        <field name="model">event.type</field>        
+        <field eval="7" name="priority"/>
+        <field name="inherit_id" ref="event.view_event_type_form"/>
+        <field name="arch" type="xml">
+            <div name="event_type_title" position="before">
+                <div name="button_box" class="oe_button_box" />
+            </div>
+        </field>
+    </record>
+</odoo>