YouTube Video Bar with Open First Video

I kinda like the YouTube video bar widget, however I have a couple uncertainties that I hope someone here may know a quick answer to:

  1. Can I programmatically (through JavaScript) tell the video bar to open a specific video upon starting up? From what I’ve seen the bar is there with no video ready to play by default…
  2. Can I tell it to show all videos in a channel and have a scrollbar (possibly through CSS width with scroll set to auto) for easy use?

I’ve searched through the YouTube docs and cannot find anything about doing this. It seems like this would be a common desire.

Thanks for any advice!