I understand what you asked, but as I said I'm not this familiar with copy protection software to give competent advice. I just would forget about that "security code at the end of models", because even if this worked I can't see how this would give you much protection.

The best method is using the Pro Edition and a resource file. The next best method is using a commercial packing/copy protection tool, and the third-best method is using one of the a free protection tools written by Gamestudio users, like NACASI.