Using Hitfilm 2017 Express.
I record a guitar based review video e.g. 10mins. My audio is recording to another source (Cubase), my video with recording with GoPro. I import the audio and video in to a new project and carefully sync up the audio/video. Then I slice up the video and audio into many sections deleting all the mistakes. I'm left with lots of small video clips on my timeline and lots of small audio clips. My video was recorded against a green screen so I want to change the background, I also want to overlay it with another video in the top right corner requiring masking etc. Therefore I need to make a composite shot. However, how can I make a composite shot of all my little clips of video and audio in an efficient way without losing all the sync of my careful alignment of video and audio? thx