Thank you all!!! Incredible how you guys respond... @Gilles: Will take a look at it today. Thanks. @Box: Very helpfull, will take a look at what you mentioned: "You probably need to learn how the inferencing system works and how components separate and allow you to repeat geometry." I'll try and find some tutorials on the inferencing system... @pbacot: By a layer I meant just one part of the closet, for examle one side... I'll let you alle know how I proceed using all advices... Again, thanks!