I need to have both 608/708 closed captions on my outputs, to deal with different broadcasters. I cannot "cut & paste" between the tracks, to duplicate the track info. I've figured out that I can "cut" the 608 track into the clipboard, then move the current 608 track data up to the 708 track, and then "paste" the original 608 info back onto the 608 track, but that's not exactly intuitive.