Well, this is why I started this: because furniture software is VERY restrictive, NOT updated, rigid, ugly (shall I continue? )... and sketchup offers more possibilities, all we must to is to take advantage on them. For now I'm stuck because I try to understand better how to use "protected" and "private" methods. Since I wasn't forced to use them since now, it's a entirely new concept for me - I understand the principle... but I am not sure that I understand how to do what I want. Anyway... I don't have any experience in programming. This is why I started learning in first place.