How to use El Gato Stream Command works by using separate Scenes.
Each Scene can have an unique layout, where a Webcam and/or Images are placed at various locations over your video.
There are a total of 9 Scenes that you can use. Each one is numbered from 1 to 9.
To layout a Scene, first select it in the Stream Command section of Elgato Game Capture HD. That section is directly above the red Capture button.
You can toggle the Stream Command section to show or hide by clicking on the disclosure triangle.
In the screenshot below, the first scene is selected, with a blue highlight.
Edit Scenes
After you highlight a Scene, you can use the Edit Scenes button to change it.
Below the Edit Scenes option, there are two buttons.
One is to add a Webcam - it looks like a camera, along with a "+" sign.
The other one is to add an image - it says "pic +".
You can only edit Scenes if Elgato Game Capture hardware is connected to your computer.
Add Webcam
First, highlight the numbered scene you want to use.
The, press Edit Scenes. That button will change to Save Scenes.
Press the first button under the Save Scenes option to add a Webcam.
A dialog will appear asking you to select your Webcam from all internal or external cameras your computer has access to.
Then, a rectangle will appear on screen - your Webcam image will appear in that rectangle.
You can move it to the location you prefer. You can also resize it by grabbing a corner and dragging.
At the bottom left corner of the Webcam window there are three buttons.
The first button looks like a hammer and wrench. That button brings up the Webcam settings window.
The second button brings that Webcam window to the front layer, so it will float over other elements you've placed.
The third button puts that Webcam window into a lower layer, so it will appear underneath other elements you've placed.
At the top right corner of the Webcam there is an "X", which can be used to remove the Webcam window from the Scene.
Press Save Scenes to save your changes.
Add Image
First, highlight the numbered scene you want to use.
The, press Edit Scenes. That button will change to Save Scenes.
Then, press the second button under the Save Scenes option option to add a Image.
A dialog will appear asking you to select an image to use.
Then, a rectangle will appear on screen - your image will appear in that rectangle.
You can move it to the location you prefer. You can also resize it by grabbing a corner and dragging.
At the bottom left corner of the Image window there are two buttons.
The first button brings that Image window to the front layer, so it will float over other elements you've placed.
The second button puts that Image window into a lower layer, so it will appear underneath other elements you've placed.
At the top right corner of the Image there is an "X", which can be used to remove the Webcam window from the Scene.
Press Save Scenes to save your changes.