So regarding parametric solution I mean when I create a surface for example a car body in case of doors I have to split the original surface.
After I have to split the door for a handle. when I want to modify the whole surface of the car later I have to start the job again. In Viacad the parametric stuffs work well (I spent just a small time to test but... it seemed ok). I can apply an remove boolean commands from the list. I really would like to see it in Moi as well.