This one is definitely on our roadmap, in the form of ‘allow rich text properties’. We do not intend to allow raw input, as this is something that will very likely break with updates to the Triggre platform. Basically, where you see an option to fix it with raw code, we see far more options that will break when we update your application. And we can’t test for those easily, nor can we fix them for you automatically, which would effectively break our compatibility.
Video will very likely be a separated item, but I understand the request for being able to add ‘inline’ videos and images. I will make sure we add this to our request list!