I've been researching this quite a lot and any solution that I have found online does not works. I have thoroughly read the guide here and I don't quite understand which files I need to modify to make any of this work. http://doc.silverstripe.org/framework/en/reference/shortcodes
I am wondering if you can tell me how can I embed a youtube video into my editor. How do I create a short code that will allow me to do that.