Change multiple groups to blocks

Hi, there. It's been a while since I posted here. Lots of work

The problem I'm facing now is this:

The designer (begginer) of our autocad project made lots of groups to make an hidraulic train. Per say, he drew each piece as a group, like pipes, sensors and so on. That in order to use copy->drag & drop.

The problem with this is that I want to extract the group info (nothing) to get the name of the piece, inches, and other attributes. But I cannot, because they are not blocks :S. Anyhow I've been practicing with this, I just have the main idea on how to export this properties to a file.

The question is: Is there any way that I could change every matching copy of the group into the same block (that I'm guessing have to do it by hand) with its properties?

Regards

So, I'm guessing this is a "Not possible"

You could get all entities of a group by this code:

(defun c:test()
 (setq a (car (entsel "\nChoose a group:")))
 (if (assoc 102 (entget a))
   (progn
     (setq b (assoc 330 (entget a)))
     (vl-remove-if-not '(lambda(x) (member b (entget x)))
  (vl-remove-if 'listp (mapcar 'cadr (ssnamex (ssget "X"))))))
 )
)