bank-statement-import/account_bank_statement_import_move_line/views/account_bank_statement_view.xml

<?xml version="1.0" encoding="utf-8"?>

<odoo>

    <record id="view_bank_statement_form" model="ir.ui.view">
        <field name="name">account.bank.statement.form.population</field>
        <field name="model">account.bank.statement</field>
        <field name="inherit_id" ref="account.view_bank_statement_form"/>
        <field name="arch" type="xml">
            <field name="all_lines_reconciled" position="after">
                <button name="%(account_statement_line_create_action)d"
                        string="Import Journal Items" type="action"
                        class="oe_highlight"
                        attrs="{'invisible':[('state', '!=', 'open')]}"/>
            </field>
        </field>
    </record>

</odoo>