Please Add "Run in Reverse" option.

Can you add a button that makes the created video run in reverse and let us download the run in reverse version? 

I started with the banner I want for my website, so I'd like to run the generated video backwards, so that it finishes on the banner.  Then, obviously, I'd like to be able to download and add the reversed version to my website.

I think it should be pretty easy to just reverse the order of the frames.