Detecting Autocast.

I was reading the Warcraft 3 Ability Guide and I come across a problem-

I need to know how to detect a player enabling an ability based off of the "Replenish Life and Mana" autocast. For anybody without thier WE open, the string next to "Order String - Activate" displays "None".

Originally I was using Replenish but I couldnt figure out how to make it cost mana. ( Mana cost doesnt work. )

The order strings are

Replenishlifeon
replenishlifeoff
replenishmanaon
replenishmanaoff

Then just make a unit is given an order event.