We have added a new feature where you can have a video of yourself or someone else superimposed over an image of your choosing.
Here is how to use it:
Make sure all your assets are on the Lightbox: You should have your background image and also the clip that you plan to superimpose.
Drag your for foreground video clip to the timeline, then click on the pencil to open the asset editor and click on "Effects"
Click on Chromakey and under the "Background color" color picker select a color that matches the color of your clip background
Then, click on "Choose image" and select one of the images that are already on your Lightbox. Click "apply" to see the effect come to live.
You can then make edits such as splitting your asset and adding text
If you want to change the size or position of your foreground video, you can easily do it by going back to the editor and simply adjusting the blue outline
Check out this video tutorial for Chromakey!