/sign my own thread for a please add a toggle to shut it off.

When I'm playing and I button smash I get red messages that say ability not ready or target dead, basically red annoying words that I'm doing something too soon or something isn't happen because of A and B. I've search through all the options in the preferences, but can not see where to turn off the error text that floats through. Anyone know if you can shut it off and where?