Hi @sixeyeco
Thanks for the message.
Apologies, this button should currently only be visible in the PRO version, as part of the automated affiliate registration system (learn more on our website).
However, we do plan to transfer some of this “affiliate registration system” functionality over to the FREE version in the near future (maybe in the next major update), which will likely result in this button working/being available in the free version ??
Currently, with the free version, you can just create a new coupon code then assign a user to it that way. Learn more here: https://couponaffiliates.com/docs/how-do-i-assign-users-to-coupons
Hope this helps, and sorry for the inconvenience caused.
Let me know if you have any other questions.
Thanks!
Elliot