I am editing a short film in Vegas Pro 15. In the still below the character on the right says he will disappear and then does just that. (In the footage he gets up and leaves frame, obviously those frames will be deleted). To cover the transition I'd like either a brief cloud of white/grey smoke or a lightning flash. I'd appreciate any suggestions re an easy way to achieve this. In addition to Vegas Pro I do have hitfilm express although I have never used it. I do not have After Effects. If the best answer is to get from fiverr.com or freelancer.com are there any pifalls to watch out for? I'd assume I just place the effect video on a video track above my video, do I need it in a format with an alpha chanel and if so what do I do with the alpha chanel? Any advise help is appreciated.