Hi Doug,
The Card designer button is only visible on the configuration tab of the visitors view, it does not appear on the configuration tab of the other views.
Could you confirm what view you are currently on bu checking the selected view in he bottom left ?
It is also possible that the Card designer button could be hidden if you setup user logins and hid that button from the user, I expect this is not the case but just worth mentioning.
Thanks,
Craig
Craig Bechelli
CardExchange Solutions Support Team
"If you define the problem correctly, you almost have the solution." (Steve Jobs)