If you select "Move", you have two options you might use: Colision Detection and Physical Dynamics. They only work when there are no interference in the initial state so maybe you can not use them. Also I will strongly recommend to select and check only the components that are likely to collide - otherwise the movement will be erratic and possibly incorrect.
Thank you Thomas, I know the move options you suggest. Unfortunately the movements are a bit complex to move 'manually'. And some items are meant to 'interfere' (a flexing part).
I would like to just see the interfering geometry dynamically (any position). I have seen this in Spaceclaim. Maybe it is just not a possibility in Solid Works?