Hi Nicolas,

I am very sorry for the late reply, we were not working on the weekend.

You can change the portfolio slug by adding the following code at the functions.php file of the Ponte/Ponte child theme.

function change_portfolio_post_type_slug() {
    if (post_type_exists('portfolio')) {
        $post_type = get_post_type_object('portfolio');
        $post_type->rewrite['slug'] = 'project';
        $post_type->rewrite['with_front'] = false;
        register_post_type('portfolio', $post_type);
    }
}
add_action('init', 'change_portfolio_post_type_slug', 20);

Feel free to ask for anything you need.

Kind Regards

You are welcome anytime, feel free to ask for anything you need

If you like our theme or the support, please leave us a rate of 5 stars at ThemeForest, that would help us a lot.

Kind Regards,
NeuronThemes