Poster Frame Image in Rise video

+10 for this, please.  It's been over two years, with multiple updates in between.  This is basic presentation 101 stuff...the difference between a polished product and amateur.  I shouldn't have to spend time using third party software to try to splice a still frame to the front of my video, to reproduce something that's already available in your core Storyline software.  This isn't a feature....it's a fix.  It's lack of timely response to things like this and the request for morph transitions that begin to create doubt that Articulate is keeping up with the times.