Thank you for your support Craig. I am having troubles with the .csv file creation though. Let us say I have a course with Shortname: 'Course A' and I want to rename it to 'Course B'. I assume this are the columns to include but I am not sure if the 'shortname' value should be a new one or rather the original one (but where to include the new one then?).

shortname,fullname,category,rename