Hi everyone, 

we want to have the possibility to show or hide the chatter in the Tasks based on a flag inside the Project. Is it possible? 

We tried to develop a module in which the task's view is inherited and modified, but it isn't working

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
  <data>
    <record id="view_task_form_inherit_hide_chatter" model="ir.ui.view">
      <field name="name">project.task.form.inherit.hide.chatter</field>
      <field name="model">project.task</field>
      <field name="inherit_id" ref="project.view_task_form2"/> 
      <field name="arch" type="xml">
        <xpath expr="//chatter" position="attributes">
          <attribute name="invisible">{'invisible': [('project_id.x_studio_show_chatter', '=', False)]}</attribute>
        </xpath>
      </field>
    </record>
  </data>
</odoo>