Change Global background image in Revolution Slider

how do you add or update a Global background image or BG Image in Revolution Slider 6. Here are the steps:

In the WordPress Dashboard, go to “Slider Revolution”

1. Select “Slide Module”
2. When select, hit the pencil icon or “Open Editor”
3. Go to the “setting” icon tab in the upper right
4. Select “Layout” and Scroll down to “Module Background” in the right