Add provided slideshows inside Presentations Videos

Edit 15+ Presentation Videos (approximately 12 hours of presentations recorded in video) by adding the pertinent powerpoint slides (provided by us) inside the video as the speakers are doing their presentations. The slides have change at the same moment the presenter changes them. As mentioned, both the source videos as well as the PowerPoint slideshow files for each presentation will be given to you. The final video should look similar to [login to view URL] where the slides are presented both for a brief time in full-screen (as in 22:25 - 22:42) (perhaps good for simple images or slides with little text) and for longer times in "half-screen" (as in 33:53 - 34:07) (perhaps better for slides with detailed graphics or a lot of text)