I’m actually looking for the same information myself. As far as I know, adding a YouTube or Vimeo video directly to an asset by adding the URL is not a built-in functionality. However, it’s possible that there were some workarounds or plugins available in the past that allowed for this. I’ll keep digging to see if there have been any recent developments on this front. By the way, I recently stumbled upon some interesting info on how to buy instant YouTube subscribers, which might be worth exploring if you’re looking to boost your channel’s reach.