Please see these threads:

https://forums.fogproject.org/topic/6249/how-to-remove-login-and-password-in-quick-imaging

https://forums.fogproject.org/topic/4433/is-it-possible-to-remove-the-fog-quick-image-password

https://forums.fogproject.org/topic/6673/disabling-password-requirement-in-boot-menu-rearranging-boot-menu/6

Please let us know if you have any questions, we are here to help.