Username change from ssh

[bryantjopplin]

I found the nvram show | grep http_username show what the single logon username is. I was wondering if there was anyway to add multiple usernames to the router like a get. I assume "nvram set http_username NEWUSER" will set the stock username. On stock firmware it is called "super_name=" and there is a "username=" as well. Just wondering if it could be added.
Thanks