Thx DrByte --

I renamed "Group B" as "AATF Members" in the two "group_price_per_item.php" files. Then under Customers / Group Pricing, I created the group name "AATF Members" (which was specified as one of the four types of membership in the line below "Group Pricing" title. I then added a test customer to that group.

However, under ID / Group Name / % Discount it lists:
1 | AATF Members | Per Item 0.00%

Is the "0.00%" the reason no alternative pricing shows up under any of the merchandise? Each item is a different discount price unfortunately, so a global percentage rate does not work for me. Am I doing something else wrong?