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I'm sorry, but I know next to nothing about the render settings, so how do you get it to render the hierarchy editor into the scene? Hip can be called anything you want as long as the internal name is the same as the grouping name.

If you press the 'Print Screen' (or 'PRTSC') key when the hierarchy editor is visible, that should put a screen shot into the clipboard, which you can later paste into an image program. But don't worry, we can communicate via text.

If I understand correctly, your modified hierarchy would look something like this:

Second hip
  Hip
    Abdomen
      Chest
        Neck
          Head
            ...
        Left Collar
          Left Shoulder
            ...
        Right Collar
          Right Shoulder
            ...
    Left Thigh
      Left Shin
        ...
    Right Thigh
      Right Shin
        ...

My alternative suggestion to make the hip bendable (which will probably not work, but I'd like to understand why):

Abdomen
  Hip
    Left Thigh
      Left Shin
        ...
    Right Thigh
      Right Shin
        ...
  Chest
    Neck
      Head
        ...
    Left Collar
      Left Shoulder
        ...
    Right Collar
      Right Shoulder
        ...

It has a nice top-bottom symmetry to it, too.

-- I'm not mad at you, just Westphalian.