How to create a "username"

When I logged onto my WAP54G for the first time the instructions said to leave "username" blank and use "admin" for the password. This worked fine. Now how do I create a "username"?. I could not find ths in any of the "tabs". Thanks

The user name cannot be

The user name cannot be changed. Only the password can be changed.

WAP54G

Username change

At initial login the username is blank.. So a username cannot be assigned/created? THanks