dispatch_wave_view.xml

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

    <act_window id="action_prepare_picking_dispatch"
                name="Picking Wave"
                res_model="stock.picking.dispatch.wave"
                view_type="form"
                view_mode="form"
                target="new"
                />

    <menuitem id="menu_prepare_picking_dispatch"
              parent="stock.menu_stock_warehouse_mgmt"
              sequence="40"
              action="action_prepare_picking_dispatch"
              groups="stock.group_stock_user,stock.group_stock_manager"
              />

    <record model="ir.ui.view" id="picking_dispatch_prepare_form">
      <field name="name">stock.picking.dispatch.wave form</field>
      <field name="model">stock.picking.dispatch.wave</field>
      <field name="arch" type="xml">
        <form string="Picking Wave" version="7.0">
          <group>
            <p class="oe_grey">
              This action will prepare you a picking dispatch
              according the number of pickings that you set.
            </p>
          </group>
          <group>
           <field name="max_pickings_to_do"/>
           <field name="picker_id"/>
          </group>
          <footer>
            <button name="action_create_picking_dispatch" string="Create Picking Dispatch" type="object"
                    class="oe_highlight"/>
            or
            <button string="Cancel" class="oe_link" special="cancel" />
          </footer>
        </form>
      </field>
    </record>

  </data>
</openerp>