title: How can I add required columns in odoo Many2many form view?
body: <p>I am having a Many2many field on a form view, field is supposed to show 5 columns but it shows only 3 in my case. All 5 fields are available there on other model. but still not able to get the solution. Help appreciated. I am using Odoo v-10.</p>
  
  <p><a href="https://i.stack.imgur.com/HgeEZ.png" rel="nofollow noreferrer">Here it shows 3 columns, and I want 5.</a></p>