Don’t need to worry about that. Actually you can take a look at our documentation right here http://support.jegtheme.com/documentation/visual-composer/ and jump into section Multi Layer Parallax Background. If you have done with make a section that using Parallax, then you will need to make row element and column (we have been explain about that on those page). You will need to put your content on column. Also it would be better if you importing our dummy content, you will get almost of our demos in there so you can replicate them.