@TIG
Thanks for the great long and damn useful answer. I will try it today

Hi everyone,
This is my very first post in this great forum. I encounter some problem when finding and using ruby api.
What I want to do know is duplicate a component - (by selecting it using model.selection[0] ), and put the duplicated one on top of the original one. I have problem with find the x,y,z of a component in space and its thickness.
I think this should be an easy issue for experienced sketchup users here