Auto-populate field

Sory, but no idea. I have this code and it could works just fine if could be auto-populated, but no idea what code to add to all 3 fields. Can you please, 'fix' the code?

P.S. - It is about (for me) weird fact how there is no (simple) option to display and filter posts by those 3 'arguments'. Closest (cheap) solution what I found is JetSmartFilter and to display/filter it trough mix of taxonomies and custom fields.

https://pastebin.com/DMNhiiUe

3) Taxonomy (additional)

As I wrote, as I already using CrocoBloks for client and there is already active JetEngine (but my CPTs are done by MB php in child theme) vs 'Listings', there is no sense to add MB as well just because of Custom Fields for filtration. I guess how you now understand why I would prefer taxonomy auto-populate solution (if it is possible).

1) I intentionally set both options for std and problem was in empty value. So, now works PERFECT. Thanks.

2) I'm afraid how I will need to do it with Custom Taxonomy, as it looks how JetSmartFilters supports only CFds created by its own JetEngine (where I cannot set auto-populate). So, please, if you can, help here also. Code is (just author, as I guess that I will figure than):

function your_prefix_register_taxonomy() {

    $args = array (
        'label' => esc_html__( 'Autores de la publicación', 'text-domain' ),
        'labels' => array(
            'menu_name' => esc_html__( 'Autores de la publicación', 'text-domain' ),
            'all_items' => esc_html__( 'All Autores de la publicación', 'text-domain' ),
            'edit_item' => esc_html__( 'Edit Autor de la publicación', 'text-domain' ),
            'view_item' => esc_html__( 'View Autor de la publicación', 'text-domain' ),
            'update_item' => esc_html__( 'Update Autor de la publicación', 'text-domain' ),
            'add_new_item' => esc_html__( 'Add new Autor de la publicación', 'text-domain' ),
            'new_item_name' => esc_html__( 'New Autor de la publicación', 'text-domain' ),
            'parent_item' => esc_html__( 'Parent Autor de la publicación', 'text-domain' ),
            'parent_item_colon' => esc_html__( 'Parent Autor de la publicación:', 'text-domain' ),
            'search_items' => esc_html__( 'Search Autores de la publicación', 'text-domain' ),
            'popular_items' => esc_html__( 'Popular Autores de la publicación', 'text-domain' ),
            'separate_items_with_commas' => esc_html__( 'Separate Autores de la publicación with commas', 'text-domain' ),
            'add_or_remove_items' => esc_html__( 'Add or remove Autores de la publicación', 'text-domain' ),
            'choose_from_most_used' => esc_html__( 'Choose most used Autores de la publicación', 'text-domain' ),
            'not_found' => esc_html__( 'No Autores de la publicación found', 'text-domain' ),
            'name' => esc_html__( 'Autores de la publicación', 'text-domain' ),
            'singular_name' => esc_html__( 'Autor de la publicación', 'text-domain' ),
        ),
        'public' => true,
        'show_ui' => true,
        'show_in_menu' => true,
        'show_in_nav_menus' => true,
        'show_tagcloud' => false,
        'show_in_quick_edit' => false,
        'show_admin_column' => false,
        'show_in_rest' => true,
        'hierarchical' => false,
        'query_var' => true,
        'sort' => false,
        'rewrite_no_front' => false,
        'rewrite_hierarchical' => false,
        'rewrite' => true,
    );

    register_taxonomy( 'autor-de-la-publicacion', array( 'noticias', 'articulos', 'cuentos', 'estudios', 'regalos', 'encuestas', 'ejercicios-web', 'podcasts', 'webcasts', 'seminarios-web', 'reciclados' ), $args );
}
add_action( 'init', 'your_prefix_register_taxonomy', 0 );