Hello, Within DrGeo I would like to extend the capability of script. As for now, a script is just method user written method integrated in an existing DrGeoUserScript class. It is a very light implementation, and it makes it easy to export the script in the sketch (a XML file). However it is very limited as there are no way to provide type checking on the script argument, customized view for the script in the canvas, external support as comments, name scrip., etc. I will be curious to read about any opinion how to improve it. Thanks Hilaire -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu