It's critical for many mechanical designs to study the design in various mechanical states. A device may have open, closed, assembling, various actuations of doors or other mechanical elements. Being able to quickly snap to the various mechanical states is critical in designing parts that must operate in each of the states.
Creo Elements/Direct Modeling does this with configurations. I can't imagine it being too difficult to store the positional information for the various components/bodies for different states. It's a must for me to be able to adopt Fusion.
