Mantis Style Essence Tweak : How to Change this voluntarily

[NicklausG]

Ok, so EVERYBODY knows about the weird Ess5 prerequisite for Grasping Claw Method. Whatever you choose to do with this is your business and i respect that. WE however, in our gaming group, choose to interpret this as a typo or balancing issue and lower the Essence requirement to Ess 3.

HOW do i change this? I have NO programming background, no idea how this may work, is there a quickfix anyone might provide, either a simple edit somewhere, a replacement file or anything? Is there even ALREADY a decision-based-fix for this in existence? If so, please link it here, i'm kinda desperate for a solution here, Anathema has really become a crucial part of our game's setup.