Unfortunately there isn’t a higher level concept like this that is exposed to python/scripting. That is a good suggestion though and we will keep it in mind.
You’ll need to grab the tracks, the sections, the channels, and then call transform (transform was recently added to 5.6) on it. Something like this. But as you noted, this only gets the DoubleChannels, you’ll need to get all the channel types (bool, string, int, etc).
