Here you will learn how to register for exams in a quick run-through. You want it more detailed? You can find the videos here. Good luck!
2. Step
After you have taken note of the notification from the examination office, you will find an overview of your selected subjects. The whole thing is set up as a tree structure. You can click through to the desired submodule accordingly.
If you are unsure which module exam you want to enroll in, you can look it up in the module catalog.