Dear CB Community,

I was wondering if there was any plugin/extension for CB which would allow me to do the following:

User has to enter a 'Membership Code' at registration and depending on the code entered, will be automatically assigned to a specific group.

I've looked at the CBSub's extension and its very nearly what I want- only I can't have all of the membership plans displayed. Is there some way I could tweak the extension or some other method of achieving the above?

Thank you,

Sam