Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General how to write the value of the status as a variable?

For example, I have a shout skill which gonna apply me stastus. The status will check my critical hit chance and then add the same precentage value of my critical hit chance to my damage multiplier.
or another example, check my strength attribute points and add same value of the points to my consititution.
I notice that thick_of_the_fight status can do the similar thing which will check the amout of the enemies around you and give you damage boosts based on that amout, but still I don't know how to do it.