How to unhide BIOS options of MSIBoard without amibcp?

[sum1]

Hi,

i`ve got a MSI K7T266 Pro (1st PCB rev.) with BIOS Version 1.9 and some -IMHO very useful options- are hidden AND deactivated (USWC for example ). - Because i red "amibcp" would corrupt every MSI BIOS edited with it i have no clue how to do this manually and don`t know alternative tools with this feature.
I`d be happy if someone could give me some hints on how to do this modification.

[edwin]

ask MSI?