feature capabilities of PowerCivil SS3

Hi,

I have just installed PowerCivil SS3. What I am trying to do is that " importion a particular contour line ( for example at level 400 m) from a surface as a feature to my another surface. in other saying, I want to take one of the contour line in a surface and then import this contour line to another surface as a feature. it was so easy in the previous SS2 version. I was using display contour lines and the giving elevation margin in advance tab. then I was coping this contour line. after that I was able to use this line as a import line to my surface. 

Thanks in advance.