Ah yes, I forgot to mention: no tables for formatting if possible. (At least not for the main structure of the document.)
I have used this technique before and it does achieve what I want so thank you for your suggestion.

But the thing is, for this to work I need to copy as many tables as I have questions in my test. That means either copy that many tables right from the start, but with work in progress it is hard to tell how many that will be, or copy the last one to get a new one and first remove it's content before I can start writing my new question.

That's why I would like to only use style definitions.
So does anyone know how to do it without the use of tables?