stock_inventory_import/views/inventory_view.xml

<?xml version="1.0"?>
<openerp>
    <data>
        <record model="ir.ui.view" id="view_inventory_form_inherit">
            <field name="name">view.inventory.form.inherit</field>
            <field name="model">stock.inventory</field>
            <field name="inherit_id" ref="stock.view_inventory_form" />
            <field name="arch" type="xml">
                <button name="action_cancel_inventory" position="after">
                    <button name="%(action_import_inventory)d"
                        string="Load File"
                        attrs="{'invisible':['|',('state', '!=',('draft')),('filter', '!=', 'file')]}"
                        class="oe_highlight" type="action" />
                    <button name="process_import_lines" string="Process File Lines"
                        attrs="{'invisible':['|',('state', 'in',('draft','done')),('filter', '!=', 'file')]}"
                        class="oe_highlight" type="object" />
                </button>
                <xpath expr="//page[@string='Inventory Adjustments']"
                    position="after">
                    <page string="Imported Lines"
                        attrs="{'invisible':[('filter', '!=', 'file')]}">
                        <field name="processed" invisible="1"/>
                        <field name="import_lines">
                            <tree colors="red:fail==True;green:fail==False"
                                editable="bottom">
                                <field name="product"/>
                                <field name="code"/>
                                <field name="quantity"/>
                                <field name="location_id" />
                                <field name="lot" />
                                <field name="fail" />
                                <field name="fail_reason" />
                            </tree>
                        </field>
                    </page>
                </xpath>
            </field>
        </record>
    </data>
</openerp>