3 <record id=
"view_invoice_form" model=
"ir.ui.view">
4 <field name=
"name">account.invoice.form
</field>
5 <field name=
"model">account.invoice
</field>
6 <field name=
"inherit_id" ref=
"account.invoice_form"/>
7 <field name=
"priority" eval=
"8"/>
8 <field name=
"arch" type=
"xml">
9 <xpath expr=
"//button[@name='action_invoice_sent']" position=
"after">
10 <button string=
"Sent by Email" type=
"object" name=
"action_invoice_sent" attrs=
"{'invisible': ['|', ('sent','=', True), ('state', '!=', 'paid')]}"/>