by James Henestofel.
Claudius,
From what I understand from your question you are trying to show something like below
- Cat 1
- course 1
- course 2
- Cat 2
- course 3
- course 4
Currently there is no way to do this that I know of
I was wanting something like this so I created an improvement to the Block "Course List" here MDL-35570 that can be added to the front page.
Hopefully this will work for you and if it does please vote it in the tracker and maybe could be added to the core.