Portfolio Category:
Cajas de cartón

Slug:
cajas-de-carton

Example:

http://www.cajas-empaques.com/portfolio_item/caja-de-carton-estandar-corrugado-sencillo-modelo-45/

i would like that it look like this for all the items in that category

http://www.cajas-empaques.com/carton/caja-de-carton-estandar-corrugado-sencillo-modelo-45/

also i have would like to make the same for the English section for example the next URL:

Category:
Cardboard boxes

Slug:
cardboard-boxes

Example:

http://www.cajas-empaques.com/en/portfolio_item/caja-para-pizza-de-carton-troquelada-de-corrugado-sencillo/

i would like that the items have an url like this

http://www.cajas-empaques.com/en/cardboard/caja-para-pizza-de-carton-troquelada-de-corrugado-sencillo/

could you helpe with this? is the only thing left to left to finnish my website

If it’s just the slug you are after go ahead and mod your \wp-content\plugins\fortuna_portfolio_cpt\fortuna_portfolio_cpt.php:

'rewrite' => array('slug' => 'portfolio_item'),

to

'rewrite' => array('slug' => 'cardboard'),

then flush your rewrite rules.

Please check this thread if you need to change the whole custom post type’s name:

http://blueowlcreative.com/support_wp/forums/topic/how-to-change-portfolios-slug-from-portfolio_item-to-something-else/