I wanted to add some functionality to polygons in etoy scripting.
But I can't really figure out how to deal with collections in etoy 
e.g I want to get access to the vertices and move them around.

But what I see in the image and in metods named 'additionsToViewerCategories'
slots seem to only deal with single variables, no collection, no changing
slot numbers etc.

Anybody got some ideas ?

Karl