Fix the youtube video background, please

You did some visual composer tweaks instead of leaving it on default settings. Now there is an option to set different types of videos as background for a row. But, where is the (default) visual composer option to set a youtube url as background video? Why did you remove this useful function? And how can I unset your remove, so that it isn’t overwritten in the next update?
I just want to make a youtube-video work as a background video. Every default theme supports this. But with your theme it doesn’t work anymore.

Kind regards,
Stephan

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