Internal commands for absolute skills.

I'm studying the game balance, so I'm adding various skills to heroes and seeing how they affect the actual outcome. I use cheat codes to add them, specifically the code add_skill number. I just have a little left to do: check the effect of fully developing eighteen basic skills (let's say, Grand Master of Gate or Absolute Invulnerability). However, among the 150 codes I found, there isn't a single one that would be responsible for this.
My question is: which internal codes are responsible for adding these skills? And maybe I'm not looking in the right place; maybe there's a different command I should be using? Is there a way to add them through the console, because waiting takes too long; I'd have to play the game for that.

Added 19 minutes later
Yes, I want to clarify: the codes found on the internet with the number four (for example, gating4 or invocation4) don't work; the console says "unknown command."