Hi @revopera,
the results you see are not generated by the site but by Google. When Google believes it will help users, it adds direct links to categories or actions for a given search result. What you can do to help Google’s bots understand your site better, is add structured data to your site.
What @sterndata suggested is to add Yoast SEO to create sitemaps that Google bots (and Bing bots) can read and understand. This way the search engines will know all your site’s pages and will add them to a queue to be indexed. After they are created you can submit them to Google Search Console.
I hope this helped clear some things up.
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