I am running SW2005, and need some help on an animation. I have an assembly for a 60 ft tower that can tilt down. The problem is that the base where the hinge is located is a sub assembly. When I have the sub assembly open by itself I can move the parts that I need to, but when I try to move it in the complete assembly I can't. It keeps telling me that the part is fully defined. I need to be able to move the part so that I can make an animation of the tower being tilted down. Has anybody tried something similar, or have an idea of how to fix the problem?