How to create left sided tabs in settings

Here is my code to create those tabs inside settings page

add_filter( 'mb_settings_pages', 'my_plugin_options_page' );
function my_plugin_options_page( $settings_pages ) {
    $settings_pages[] = array(
        'id'          => 'plugin',
        'option_name' => 'plugin',
        'menu_title'  => esc_html__('My Plugin Settings','plugin'),
        'icon_url'    => 'dashicons-edit',
        'parent'      => 'edit.php?post_type=plugin',
        'style'       => 'boxes',
        'columns'     => 2,
        'tabs'        => array(
            'general' => esc_html__('General Settings','plugin'),
            'search'  => esc_html__('Search Settings', 'plugin'),
            'promotion' => esc_html__('Promotion Settings', 'plugin'),
            'detail'    => esc_html__('Detail Page Settings', 'plugin'),
            'faq'     => esc_html__('FAQ & Help', 'plugin'),
        ),
        'position'    => 5,        
    );
    return $settings_pages;
}

I even tried to add
'tab_style' => 'left'

But still I am unable to get my tabs to the left side aligned ... Kindly assist me how can I do this to make it done by now .. already way late on this here ...

Thank you