The demos up to this point have all been from Microsoft and rather commercial in nature. What's shown in the video is different. Instead of trying to sell users on the benefits of HoloLens, It's a tutorial video for the recently leaked Actiongram app, which is used to make movies with holograms in HoloLens.
Microsoft has not yet unveiled this Clicker accessory officially, but it’s clearly designed to help people who are struggling with the air tap commands. Twitter user WalkingCat uncovered details about Microsoft’s HoloLens accessory and the new Actiongram application.