Thanks for answering.
Unfortunately, after studying several ways what I want, for any of the bigbox themes that I need to use in my project, I have come to the conclusion that Bigbox is not prepared for this.
At first, I thought of this as a possible solution, but those videos were recorded with the standard (special) control animation and also the language used by the person who recorded their themes at that time.
In my case, the control animation is different, and the language too.
To get what I need, Jason Car needs to enable a directory that allows overexposing control animation videos.
Although the possibility of implementing something like this has been discussed for years, it is still not possible.
In the meantime, I have no choice but to install another front end for my project.
It makes me sad because if launchbox implemented or enabled this feature, it would be great to be able to take advantage of other current features at the same time, such as netplay lobby, Hi Scores etc. for example, but today it is not possible to simply overexpose these control animation videos in any theme.
I hope that one day, an update will allow me to do this.
Thank you anyway.