author

You can do it with CSS which will hide it, or PHP will which remove it completely – your choice.

CSS:

.byline {
    display: none;
}

.single .byline {
    display: block;
}

Adding CSS: https://generatepress.com/knowledgebase/adding-css/

PHP:

add_filter( 'generate_post_author','generate_modify_author_display' );
function generate_modify_author_display()
{
    if ( is_single() )
        return true;

    return false;
}

Adding PHP: https://generatepress.com/knowledgebase/adding-php-functions/

Thank you very much!

You’re very welcome ??