Hi,
  I am interested to use the WheelMorph in an application not relative 
to 3D, but just 2D interactive geometry. This morph is just more handy 
than the usual scrollbar in my case.

Is the only way to install this morph is throught the installation of 
the Balloon3D package? I could duplicate the morph and integrate it my 
own package, but well... Is there any other possible way?

Hilaire