Yeah setting the inital state is a great tool but it isnt really what I'm looking for. And if you can only move using the bake tool then Its no use either.

What I'm looking for is a way to take the cache(memory or whatever its called) of the dynamics and for example cut the frames it takes by half.

Right now I just render out to many frames and cut out half of it when I put it together.

Thanks for a answer tho, and I will look into bake as it seem like something I should know.