Customized meta field repeated area

I wish to add a area in my customized meta field, identical as under, however not for tags. How can I repeatedly take extra inputs in the identical area?

Right here is my code added to features.php:

operate dikka_cmb_meoxes( array $meta_boxes ) {
    $prefix = 'dikka_';
    $meta_boxes['details_meox'] = array(
        'id'         => 'details_meox',
        'title'      => __( 'Porject Particulars', 'dikka' ),
        'pages'      => array( 'portfolio', ), // Submit kind
        'context'    => 'regular',
        'precedence'   => 'excessive',
        'show_names' => true, // Present area names on the left
        'fields'     => array(
            array(
                'title'     => __( 'Consumer', 'dikka' ),
                'desc'     => __( 'Add shopper title', 'dikka' ),
                'id'       => $prefix . 'add_client',
                'kind'     => 'textual content',
            ),
            array(
                'title'     => __( 'Expertise', 'dikka' ),
                'desc'     => __( 'Add expertise', 'dikka' ),
                'id'       => $prefix . 'expertise',
                'kind'     => 'textual content',
            ),
            array(
                'title'     => __( 'Launch Date', 'dikka' ),
                'desc'     => __( 'Add launch date of mission', 'dikka' ),
                'id'       => $prefix . 'add_releasedate',
                'kind'     => 'text_date',
            ),
        )
    );
    return $meta_boxes;
}