wp-acf-taxonomy-field-groups-register.php

<?php

add_action('init', 'hwk_acf_taxonomy_register');
function hwk_acf_taxonomy_register(){
    register_taxonomy('acf-field-group-type', array('acf-field-group'), array(
        'labels'            => array(
            'name'              => _x( 'ACF Field Groups Types', 'taxonomy general name', 'textdomain' ),
            'singular_name'     => _x( 'Type', 'taxonomy singular name', 'textdomain' ),
            'search_items'      => __( 'Search Types', 'textdomain' ),
            'all_items'         => __( 'All Types', 'textdomain' ),
            'parent_item'       => __( 'Parent Type', 'textdomain' ),
            'parent_item_colon' => __( 'Parent Type:', 'textdomain' ),
            'edit_item'         => __( 'Edit Type', 'textdomain' ),
            'update_item'       => __( 'Update Type', 'textdomain' ),
            'add_new_item'      => __( 'Add New Type', 'textdomain' ),
            'new_item_name'     => __( 'New Type Name', 'textdomain' ),
            'menu_name'         => __( 'Type', 'textdomain' ),
        ),
        'hierarchical'      => true,
        'public'            => false,
        'show_ui'           => true,
        'show_admin_column' => true,
        'show_in_menu'      => true,
        'show_in_nav_menus' => true,
        'show_tagcloud'     => false,
    ));
}