As soon as you purchase more than 2 courses at the same time, you are automatically changed to a Group Admin.
You can also manually select the checkbox labeled 'I am purchasing multiple licenses for other people' in your online shopping cart at checkout. This option allows you to adjust the number of licenses you wish to purchase.
Here is a short 1-minute video that explains how Group Accounts work.
https://aaafoodhandler.com/group-accounts
Once you are in the account, you can click Enroll Student and individually enroll students OR there is a Bulk Enroll Option on the left menu bar, which is very easy to use.