Hello Cameron
What you are describing is the methodology of configuration for Flexible NetFlow. In the lesson, the configuration shown is that of the more traditional NetFlow.
I went into CML and found that both methods are available. I am using the following version:
Cisco IOS Software, IOSv Software (VIOS-ADVENTERPRISEK9-M), Version 15.9(3)M6, RELEASE SOFTWARE (fc1)
Possibly your version does not support the more traditional NetFlow configuration, although I find that quite interesting. In any case, there it is…
I hope this has been helpful!
Laz