This video is for my friend Chao-Kuei worrying about scripting in DrGeoII http://squeak.ofset.org/drgeo/etoysScripting1.ogg
Tile scripting or smalltalk scripting can be used. I am sure you can get help to use the etoys stuff from both the squeakland or etoys mailing list.
Hilaire
squeakland@lists.squeakfoundation.org