i am unable to add more than one hull to my ship designs. is this only a collectors edition option or am i missing a option that i have to check? i have searched and have not found a way to do this. i notice that alot of the pictures of the ship designs out there have more than just the base hull attached in thier designs. i would like to be able to do this also. if you know what i am doing wrong or if i cannot do it please let me know.

thanks