Working on a new acquirer, I used this views/payment_acqurier.xml
<record id="acquirer_form_bank" model="ir.ui.view">
<field name="name">acquirer.form.bank</field>
<field name="model">payment.acquirer</field>
<field name="inherit_id" ref="payment.acquirer_form"/>
<field name="arch" type="xml">
<xpath expr='//group[@name="acquirer_display"]' position='after'>
<group attrs="{'invisible': [('provider', '!=', 'bank')]}">
<group>
<group>
<field name="merchantid"/>
</group>
</group>
</group>
</xpath>
</field>
</record>
Please note the three group containers. If I remove two of them, the views/bank.xml cannot access the field marchantid anymore:
<input type="hidden" name="merchantid" t-att-value="tx_values['merchantid']"/>
So, where do I tell odoo to not travese the xml tree two groups-containers deeper?