LENOVO M42KT54A BIOS no PciBus found within both MMTool and UEFITool

[jigglesworthbinglebob]

Trying to enable ReBar on my evil prebuilt (Lenovo IdeaCentre Gaming5 17IAB7) to squeeze the life out of my 3060. Downloaded the most recent BIOS files off of the official website (linked below) and am trying to get through the Adding FFS Module portion but in MMTool there is no "PciBus" and in UEFITool I couldn't find anything from those searches it said to do. Also I'm not totally sure I'm using the right BIOS file. All the available options on the Lenovo page were a .exe, a .iso, and a USB Flash BIOS package .zip with a .cap inside it that I've been using.
m42jt54usa (1).zip