Adding pins to existing design - Pin Planner trouble

I have an existing design I'm trying to add an extra address bit to but I'm having trouble adding the pin to the appropriate group in Pin Planner.

I have CFI Flash on the board that we replaced with double the depth and added an additional address line on the board to a free pin. I have my SOPC Builder schematic symbol in the top level bdf updated to reflect the extra address line but the output still shows the smaller number. I updated the name to reflect the extra address line.

The name of the output matched the group name in Pin Planner for the smaller set of address lines. I opened Pin Planner, added the new Node Name and tried to add it to the existing group, but I receive the following error:

"The group node cannot be created as the name already exists or is not valid"

I know it already exists....that's why I tried to ADD the node to it!

How do I add this new pin to the appropriate group?