<div class="std-field-wrap">
    <label><?php esc_html_e('Dropdown List', 'subscribe-to-download'); ?></label>
    <div class="std-field">
        <div class="std-radio-list-wrap std-dropdown-list-wrap">
            <?php include(STD_PATH . '/inc/views/backend/form-sections/custom-fields/radio-button-list.php') ?>
        </div>
        <input type="button" class="button-secondary std-add-option-trigger" value="<?php esc_html_e('Add Option', 'subscribe-to-download'); ?>" data-field-key="<?php echo esc_attr($field_key); ?>" data-field-type="<?php echo esc_attr($field_type); ?>">
    </div>
</div>