Hi @Quantumgo, Yes, that is because it is not using any, only the standard tabs widget, and then there is some custom code that detects when the mouse is hovered over the tab-link class and then performs a mouse click 
You simply need to assign each tab link with the class name “tab-link” and the paste the following into the custom code Footer of the site or page settings:
<script>
$('.tab-link').hover(
function() {
$( this ).click();
}
);
</script>
Here is a an article from the Help Center on using custom code: http://help.webflow.com/faq/how-to-add-custom-head-and-body-code-to-a-webflow-site
I hope this helps!