Don't know the best way to do this. Basically I want my webcam to capture me live, and rather than the background behind me, show a video background (the ocean, no audio). I would like the video to take up the entire background with me in the forefront. Don't know if I need chroma key for this, or layers. Not sure how to set up either. Any suggestions would be appreciated.

Not sure what I am doing wrong, but I cannot get green screen chroma key to work. This is what I do. I create an input for my webcam, then I create an input for the video I want on the green screen. I then go back to the webcam input, and use the chroma key eyedropper to select the green background. Then I create a virtual set from a blank, (background and webcam). I go to my webcam input and use the eyedrop tool to select the green screen. In the virtual set, I use background with my video clip, and layer 1 my webcam. I start my video. When I do this, I get only me sitting in front of a webcam with the green screen behind me and no video at all. If I flip the settings on the virtual set, all I get is the video. What am I doing wrong? Should be simple but it isn't.