By default, when a hero has a hero ability, there is a "Hero Abilities" button located a 3, 1 of the Command Card. I was looking through the Gameplay Interface and I couldn't find a way to change the tooltip.
Is it possible to change the tooltip? If so, direct me to where I can.
It's editable, but you need to overwrite some file with an import *goes to find*
Edit: Scroll through that to find [CmdSelectSkill] and edit the Ubertip text, then import that file into your map with the path Units\CommandStrings.txt
Note: It may overwrite some things that are in Game Interface.