SEO URL modifications in opencart

Im looking opencart expert to done some modifications in opencart . These modifications are need to done via teamviewer or anydesk. 1. I need to add custom category type like, Character, Series. So, one specific character, series could be in various products. I want the character, series to behave like categories, so when the customer clicked in the name, it would show all the products from that character, series. In Wordpress that would be really easy to do with Custom Post Types and Custom Taxonomy, but in Opencart I just can't find where to edit to get those modifications. (Wordpress is not an option because the client wants Opencart). 2. Need to rewrite the URL for my Product Page, and category page Current product URL is : [login to view URL] But I need to display it like: [login to view URL] These change need to done in categories also, Current Category URL is : [login to view URL] But I need to display it like: [login to view URL]