Video Layering Windows client

Hello,
Is it possible to create two superimposed zones to put videos and by choosing the zindex order, choose the running order (windows)
example:
zindex0 layer: 60 minute video
zindex2 layer: video every 10 minutes
rendering: have the main video and switch to the second video (ad)
In my case the sounds of the two videos work simultaneously,
but the image does not come into the foreground even if its zindex is higher
With Google traduction sorry if not clear
Thank you

If you want videos to play one after the other then you can simply add them both to the same Region, ensuring that the durations are correct for each video.

Your Timeline will then update to show you how it will play.