To make clothing posable for DAZ Studio, you are essentially going to need either a copy of Poser or Greenbriar's Toolbox II Poser/Toolbox III Pro (available in the DAZ store), as DAZ Studio does not have rigging tools.

Your other and far more painful alternative is to download Kuroyume's Poser Unofficial CR2 File Specification and a good text editor ( I recommend Notepad++ myself)