Is it possible to make the blog carrousel auto ...

Yes, It is possible.
Go to option panel , in General tab, add the following code in “Custom JS Code” field. Then save all options. That’s it.

;jQuery(window).load(function () {
   jQuery(".widget-blog .motion-wrapper").trigger("configuration", {
       auto: {  play  : true, duration : 1000 , infinite    : true, circular    : true, pauseOnHover: "resume"  }
   });
});