How to setup Attendant Console for two (2) receptionists / operators

have Attendant Console setup for the main receptionist successfully.
She has 6 separate lines (1001 - 1006) on the same partition using a
7960 phone.

The backup receptionishts has a 7960 with lines (1007 - 1012. But she
doesnt have attendant console yet.

When I tried setting up Attendant Console on the Second Receptionist, I
created a separate loging for her and created a user called AC2 on the
Global Directory.

I am able to open the Attendant Console but the lines are grayed out.
--- After reading it seems that it only uses the AC user in the Global
Directory, is this true?

MY QUESTION: How can I successfully setup Attendant Console for 2 (two)
receptionists/Operators ? What strategies can you give me?

I have tried everything and they are waiting on me!!!

.