MetaBox Tabs generated with Builder

<?php
add_filter( 'rwmb_meta_boxes', 'your_prefix_register_meta_boxes' );

function your_prefix_register_meta_boxes( $meta_boxes ) {
    $prefix = '';

    $meta_boxes[] = [
        'title'      => esc_html__( 'Header image info', 'nr' ),
        'id'         => 'header-image-info',
        'post_types' => ['post', 'page'],
        'context'    => 'normal',
        'priority'   => 'high',
        'fields'     => [
            [
                'id'   => $prefix . 'bgpos_horiz',
                'type' => 'number',
                'name' => esc_html__( 'x postion (%)', 'nr' ),
                'size' => 3,
                'tab'  => 'position',
            ],
            [
                'id'   => $prefix . 'bgpos_vert',
                'type' => 'number',
                'name' => esc_html__( 'y position (%)', 'nr' ),
                'size' => 3,
                'tab'  => 'position',
            ],
            [
                'id'   => $prefix . 'img_attr',
                'type' => 'text',
                'name' => esc_html__( 'Image attribution', 'nr' ),
                'size' => 30,
                'tab'  => 'attribution',
            ],
            [
                'id'   => $prefix . 'img_src_url',
                'type' => 'text',
                'name' => esc_html__( 'Source URL', 'nr' ),
                'tab'  => 'attribution',
            ],
        ],
    ];

    return $meta_boxes;
}