eiru_mrp_edit_comp/views/mrp_view.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <record id="mrp_production_form_view" model="ir.ui.view">
            <field name="name">eirusoft.mrp.production.form</field>
            <field name="model">mrp.production</field>
            <field name="type">form</field>
            <field name="inherit_id" ref="mrp.mrp_production_form_view"/>
            <field name="arch" type="xml">
      				<xpath expr="//group[@string='Products to Consume']/field" position="attributes">
      					<attribute name="context">{'default_location_id':location_src_id, 'default_location_dest_id': %(stock.location_production)d, 'default_name':'Unplanned consumption' }</attribute>
      				</xpath>
      				<xpath expr="//group[@string='Products to Consume']/field/tree" position="attributes">
      					<attribute name="editable">bottom</attribute>
      				</xpath>
      				<xpath expr="//group[@string='Products to Consume']/field/tree/field[@name='state']" position="after">
      					<field name="name" invisible="1"/>
      					<field name="location_id" invisible="1"/>
      					<field name="location_dest_id" invisible="1"/>
      				</xpath>
      				<xpath expr="//group[@string='Products to Consume']/field/tree/field[@name='product_id']" position="replace">
      					<field name="product_id" on_change="onchange_product_id(product_id,location_id,location_dest_id)" />
      				</xpath>
      			</field>
      		</record>
    </data>
</openerp>