cooperative-market/beesdoo_shift/wizard/extension.xml

<odoo>
    <record model="ir.ui.view" id="extension_coop_wizard_view_form">
        <field name="name">Extension Management</field>
        <field name="model">beesdoo.shift.extension</field>
        <field name="arch" type="xml">
            <form>
                <field name="cooperator_id" invisible="1"/>
                <field name="auto" invisible="1"/>
                <group attrs="{'invisible': [('auto', '=', False)]}">
                    <field name="extension_start_date" />
                </group>
                <group attrs="{'invisible': [('auto', '=', True)]}">
                    <field name="extension_days" />
                </group>
                <footer>
                    <button type="object" name="extension"
                        string="Confirm" class="oe_highlight" attrs="{'invisible': [('auto', '=', True)]}" />
                    <button type="object" name="auto_ext"
                        string="Confirm" class="oe_highlight" attrs="{'invisible': [('auto', '=', False)]}" />
                    or
                    <button special="cancel" string="Cancel" />
                </footer>
            </form>
        </field>
    </record>
</odoo>