Captions for Episodic channel

I am trying to add captions to my episodes in my channel. I see in the SDK documentation, the new specs for adding TTML captions to my channel, but I don’t see any documentation on how to add it to your episode XML document. I found on another post the following code that was added to the appVideoScreen.brs:

screen = CreateObject("roVideoScreen")
subtitle_config = {
      TrackName: episode.ccURL
  }
  metadata = {
      Stream: {
          Url: episode.stream
      },
      StreamFormat: "hls",
      SubtitleConfig: subtitle_config
  }
  screen.SetContent(metadata)
  screen.ShowSubtitle(true)
  screen.Show()

but I still can’t figure out where I put my caption file url in my episode xml document. I am not very good at this stuff, so any help would be greatly appreciated!

Thanks!

You need to ask that in the developer’s forum:
viewforum.php?f=34