Hi, i inherited a view from crm and i add a new notebook page, i can't set this page invisible when the stage_id is different 'lost'
can you help me please
this is my view code
<record id="view_oppor_form" model="ir.ui.view">
<field name="name">crm.oppor.form</field>
<field name="model">crm.lead</field>
<field name="inherit_id" ref="crm.crm_case_form_view_oppor/>
<field name="arch" type="xml">
<xpath expr="/form/sheet/notebook/page[@string='Internel notes']" position="after">
<fields name="cause_perte"/>
</xpath>
</field>
</record>