Sax, be more clear, please. Many of us (including me for instance) may not have a clue what is on p. 177 of SketchUp Cookbook. There is no such thing as a "3d plane". "Planes" are 2D only. Then you are talking about a "hole" (which should be in 2D again) then switch to a "cylinder" (which is already 3D).
On top of all, I cannot figure out why you would want to move/unglue these tubular holes at all. Some screnshots or (even better) the skp file itself would be helpful to attach.