Loft - history profiles

 From:  Coolphone
6953.1 
Hello,
I'm making a profiles for Loft, and than Loft. I have a surface, and I can change it by moving profiles. And what if I want to add another profile to manipulate this surce? I'm copying one of the profiles by holding Ctrl, and when I move new profile surface doesn't change... Is it possible or I need to create new loft surface?