manufacture/repair_picking_after_done/views/repair.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <record id="repair_type_form_inherit" model="ir.ui.view">
        <field name="name">repair.type.inherit</field>
        <field name="model">repair.order</field>
        <field name="inherit_id" ref="repair.view_repair_order_form" />
        <field name="arch" type="xml">
            <header position="inside">
                <field name="remaining_quantity" invisible="1" />
                <button
                    name="action_transfer_done_moves"
                    string="Create Transfer"
                    type="object"
                    attrs="{'invisible': ['|', ('state','!=', 'done'), ('remaining_quantity', '=', 0)]}"
                />
            </header>
        </field>
    </record>
</odoo>