will this plugin do this

Hi @gnfb,

unfortunately, my plugin does not allow to filter or redirect the author archive URLs. To make it working, you will need a custom solution.

Could you provide me with more details on the issue you encounter with post permalinks?

Best regards,
Maciej

Ok, I see. Actually, I no longer do the custom development work for free, but you can use this code to redirect the visitors the way you want:

function pm_redirect_author_archive() {
	global $wp_query, $wp;

	// Get the slug
	if(preg_match('/^([^\/]+)$/i', $wp->request) && !is_author()) {
		$author = get_user_by('slug', $wp->request);

		if(!empty($author->ID)) {
			$author_url = get_author_posts_url($author->ID);

			wp_safe_redirect($author_url, 301);
			exit();
		}
	}
}
add_action('template_redirect', 'pm_redirect_author_archive');

You should add the code snippet to the functions.php file in your child theme directory.

Best regards,
Maciej