Its all in that guide, its should be “Replace as is”, any other questions regarding the tool, post it there:
[TOOL] UEFI Editor - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)
Further guidance here:
[GUIDE] Usage of AMI’s AptioV UEFI Editor + FPT Flash Method - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)
Note… this is user tools, be prepared for any system flash fails and how to recover, make full dump of the SPI and separate regions.
Nothing is for sure regarding bios mods and flashing, its all user choice and risks.