Is there any way to automatically populate the username field at the SignUp Client computers and then just request the password?

User process

1. A user would book a reservation through the Nerve Center / Pharos Station

2. When the schedule reservation is due the user would walk up to the correct signup machine

3. The user would press the logon button and there logon name / card id would be in the logon field

4. Then the user just enters the password to logon

If the reserved prompt (Pharos Administrator > System > Prompts > SignUp > Computer Reserved) contains the logon id (%1), the user name field will be pre-populated with the logon id.

The default prompt contains the alias (%4), so they will not get this behavior by default: You need to change the prompt.