If you are looking for good description of CCS strategies and how you can improve simulated time management, diagnosis and follow-up care, I suggest doing ********** before practicing UWorld. Archer is a video course that demonstrates CCS on the real exam practice materials and goes over everything step by step on the exam software showing many high-yield cases on it.
The mapping ccs link given above is not a software or a video, it's a pdf file for you to read and is just basic that you can find on usmle practice materials. I have not found it a particularly useful addition to UWorld.