@agrasic2
1. The result of no.5 mod as i expected. I suspected the graphic bios interface you can see in bios is from one of two custom menus ,see below picture, on your machine it should used the second group menu. The no.5 mod was made for testing switch to menu1 ,then it is successful.
https://image.bingfeng.tw/images/po36005.png
2. On no.31_1 & no.32_1 mods , In order to inject more options ,so i choose to inject Setup tab to presents all sub-tabs ,this is not a good way ,but this is the only idea i can thinking currently. There are too many duplicate tabs and excess tabs ,on next mod i will hidden them and do modification in detail.
https://image.bingfeng.tw/images/po3600311.png
3. This bios is different with typical ami bios ,it doesn't hidden any tabs ,but only can be switched between menu1 and menu2. I've spent few days to analyzed it and mod result of no.5 mod was proved my thinking is right.