Inherited View for adding buttons to Stock Picking Kanban

stock.picking.kanban.example.txt

<data>
    
<t t-esc="record.scheduled_date.value and record.scheduled_date.value.split(' ')[0] or False" 
   position="before">
  <button name="671" 
          icon="fa-calendar-minus-o" 
          type="action"/>
</t>

<t t-esc="record.scheduled_date.value and record.scheduled_date.value.split(' ')[0] or False" 
   position="after">
  <button name="672" 
          icon="fa-calendar-plus-o" 
          type="action"/> 
</t>

</data>