BIOS Unlock - Sabertooth X79 PCIe Bifurcation for dual nvme

I did try following another guide from here but I cannot find anywhere to download AMIBCP and I’m not experienced enough to figure out the missing info in the guide. Nothing would be missing for those of you experienced in this. But simple steps or locations of what to use or even keyboard shortcuts.

Here’s the guide.

My concern is doing some serious damage without knowing what I am doing.