Out of the box a Portfolio item’s permalink is <site-url>/portfolio-item/<slug>.
I could add my own CPT, but it would probably not use X’s meta info for Portfolio (or it could possibly be hard to hook up with).
I already use a child theme to make customizations on X. So I’d like to know how I could add something like 'rewrite' => array('slug' => 'clientes'), to the arguments of x-portfolio CPT.
Or, alternatively, how to hook up another CPT to use x-portfolio item meta options?