That is what I'm looking for, but I'm having problems with importing the Data.
According to tuturioals you should place your data like so.
StudentName Date CourseName CourseLeader John Doe 01-01-1990 Online Course 1 John Doe Mary Sue 01-01-1990 Online Course 1 John Doe etc. 01-01-1990 Online Course 1 John Doe
And the first row of the document should appear as seperate items in the DataMerge field, but it doesn't do that, it just place everything in the same row.
I've made the table in excel and saved is as CSV.
So thank you for pointing me in the right direction, although I've encountered these shenanigens.
edit: I found the problem, my export seperates the text with ; instead of ,
I often find that tab-delimited text files are more reliable than .csv with Data Merge.