Create Action menu item and process data with a wizard
An Action menu appears on top of a model list or single page. We can add a new action to handle data according to our demand.

<odoo>
<data>
<act_window id="custom_action"
name="Custom Action"
src_model="sale.order"
res_model="wizard.sale.order.custom"
view_mode="form"
target="new"
multi="True"/>
<record model="ir.ui.view" id="custom_form_view">
<field name="name">wizard.sale.order.custom.form</field>
<field name="model">wizard.sale.order.custom.cancel</field>
<field name="arch" type="xml">
<form string="Quotation">
<group>
<field name="order_ids"/>
</group>
<footer>
<button name="confirm_action" type="object" string="Confirm Action" class="oe_highlight"/>
or
<button special="cancel" string="Cancel"/>
</footer>
</form>
</field>
</record>
</data>
</odoo>
class CustomAction(models.TransientModel): _name = 'wizard.sale.order.custom' def _default_orders(self): return self.env['sale.order'].browse(self._context.get('active_ids')) sale_ids = fields.Many2many('sale.order', string='Sales', default=_default_orders, auto_join=True, required=True, readonly=True) @api.multi def confirm_action(self): if self.sale_ids: for sale in self.sale_ids: # Do something here