Hi, I'm programming a Sharp ER-A420 cash register. I want to use some of the buttons to allow Cashiers to log in (without a code/password). Currently, they press their cashier number followed by the CASH # button to log in. I want them to be able to simple press a button with their name on it to log in. Can I have this function on different keys for different cashiers, I was going to use the 6 Dept buttons to sign cashiers in? thanks in advance. I've gone through the service/dealer manuals several times and can't figure this one out!

Retail Supplies - Sharp - ER-A420 Cash Register