account_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

    <record id="view_account_move_line_filter_add_statement" model="ir.ui.view">
        <field name="name">Journal Items add statement</field>
        <field name="model">account.move.line</field>
        <field name="inherit_id" ref="account.view_account_move_line_filter"/>
        <field name="arch" type="xml">
            <xpath expr="/search/group/filter[@string='Period']" position="after">
                <filter string="Bank Statement" context="{'group_by': 'statement_id'}" icon="terp-partner"/>
            </xpath>
        </field>
    </record>

    </data>
</openerp>