– The portfolio items comes from AJAX, therefore due to local security restrictions, some things will not work locally, especially in Chrome. But everything will work once the files have been uploaded to your website/server (or localserver LOCALHOST).
– The load more calls for the files in the ajax folder, for example: portfolio-ajax-load-more-2.html
– The JS function that does that can be found at js/examples/examples.portfolio.js around line 438.
– See the HTML structure of load more on the page “portfolio-extra-load-more.html”.
Please, try that and let us know if you need further assistance.