Hi there,
Try this PHP snippet:
add_filter( 'generate_excerpt_more_output', function() {
return sprintf( ' ... <a title="%1$s" class="read-more" href="%2$s" target="_blank">%3$s %4$s</a>',
the_title_attribute( 'echo=0' ),
esc_url( get_permalink( get_the_ID() ) ),
__( 'Read more', 'generatepress' ),
'<span class="screen-reader-text">' . get_the_title() . '</span>'
);
} );
Adding PHP: https://docs.generatepress.com/article/adding-php/
Let me know if this helps 🙂