I don't know what I'm going to do yet, I'll think about it.
Anyhow, thank you for the replies and the tips.
Yet still, I have another question: can you use control vertex and hull with a cube as you can with a cylinder, because when I (maya version 7.0 Unlimited) do control vertex on a cube its only one side of it. Is there an option for this that I need to turn on/off so I can edit the whole cube at one time?

Greetings