I've managed to ungrey options using ModBIN like wu described, unfortunately unlocking that setting doesn't always mean the other stuff is available in BIOS to change it.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>