Add this script to the Theme Options » Integrations » body to activate the second filter in stead of the 'all' tab.

<script type="application/javascript">
(function($) {
$(document).ready(function() {
setTimeout(function(){
$(".et_pb_filterable_portfolio .et_pb_portfolio_filters
li:nth-child([2]{.mark}) a").trigger('click');
},800);
});
})(jQuery)
</script>
Code language: PHP (php)