As the author of this guide, I'm not happy that it couldn't benefit the average user. Fairly, the reason for this is a language barrier, overcoming which was entrusted to Google translator, or a significant lack of details. I will add ready-made files, pictures with examples, and perhaps unify it for both Insyde and your AMI BIOS. And in the summer, when I have free time, the guide will be improved. Until then, be patient.
No, haven't left it. I usually make shorter and therefore more understandable guides. There WAS just no need.