title: OpenERP - how to add submenu in "More" button on form view
body: <p>In Bill of Materials view I have "More" button/dropdown menu, please see the picture. I want to add a submenu to it, that will launch another, custom, form. How I can do that?</p>
  
  <p><img src="https://i.stack.imgur.com/f4dDg.jpg" alt="enter image description here"></p>