Hi Torben,

Unfortunately it is not possible to display the slides in a random order. That requires some code customization within the template file.

I can provide you a code snippet that will display a different slide on each page load, but the order of all slides will be the same. If you want to use that please copy paste the following in to Appearance > Customize > Theme Options > Custom > Custom JS Head

<script>
var currentSlide;
var rand;
jQuery(document).ready(function() {
  currentSlide = Math.floor((Math.random() * jQuery('.item').length));
  rand = currentSlide;
  jQuery('#jumbotron-fullwidth').carousel(currentSlide);
  jQuery('#jumbotron-fullwidth').fadeIn(1000);
  setInterval(function(){ 
    while(rand == currentSlide){
      rand = Math.floor((Math.random() * jQuery('.item').length));
    }
    currentSlide = rand;
    jQuery('#jumbotron-fullwidth').carousel(rand);
  },5000);
});
</script>

If you really need the randomized order in slides I recommend to install the Crelly Slider plugin, which is a very easy to use slider with advanced options.

Let me know if you have any questions.