Totara Learn Open Discussions

I am using Totara Learn version 12. I need to assign learners to 2 groups within a course: 1) the session that they will be attending and 2) their geographic region. 

In the documentation it states: 

In order to upload your students successfully, you will need to create a CSV file with the students details. CSVs are simple to create - one way is in a spreadsheet package, making sure to save it as a .csv file type. At minimum, your CSV file should contain one column for the main student identifier, usually their email address but it can also be their userid, or student ID number. Ensure you have column labels - this is because Moodle anticipates these and so ignores the first row of CSV file. In other words, don't put any actual student data in your file's top row. If you are using email then put 'email', if you are using user IDs then put 'userid'. If you want to enrol the students into Groups, include a second column which gives the group name for each student. Be careful to type these exactly. Give it a column heading 'group'. You can add subsequent groups in subsequent columns.

So, it sounds like I should be able to add another column and enroll them in 2 groups at the same time. When I try it (see below) it only adds the learner in the first group. Am I setting this up incorrectly or is this just not an option?

Thank you!