title: How to open a specific gallery item from a specific fancybox gallery by clicking a button?
body: <p>So I have made a Fancybox gallery for property pages on a real estate website. This gallery show both property images and a floor plan.</p>
  
  <p>On the property page I have a button to open the floor plan, but how do I open a specific gallery item, which in this case is the floor plan?</p>
  
  <p>This is my code where I find the index of the floor plan gallery item.</p>
  
  <pre><code>jQuery(document).ready(function() {
      var galleryItem = document.getElementById('drawing-item-1');
      var galleryItemIndex = jQuery(".property-gallery__item").index(galleryItem);
  
      jQuery('.launch-gallery-drawing').click(function(){
          // Open the gallery and display the correct item by the galleryItemIndex
      })
  });
  </code></pre>
  
  <p>I have tried using <code>jQuery.fancybox.getInstance().jumpTo(galleryItemIndex);</code>, but I think this method is only meant for an open and active instance of a gallery, which it isn't yet.</p>
  
  <p>I have also tried <code>jQuery.fancybox.open();</code>, but this creates a new instance/new gallery.</p>
  
  <p><strong>How do I open a specific gallery item from a specific fancybox gallery by clicking a button?</strong></p>