Fixing CFG Lock from OC Guide

I have mojave installed and am now just cleaning up the system. I was able to follow most of dortania's post-install instructions but got stuck in Fixing CFG. I'm brand new to hackintoshing so apologies if this is a question with an obvious answer.

I am at the step where I'm instructed to "Run the Modified GRUB Shell" so I can paste the value from my firmware. I have no idea what "running the grub shell means." I have Modified Grub Shell in my tools folder of the EFI. I found the value for my bios using UEFITool so this feels like I'm on the last step. Do I need to input a terminal command? Am I missing an application? Any help is welcome. Thanks!

submitted by /u/lastpurchase
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