Error messages and Macros

Is there a way to turn off the sound and message that appears in the top-center of the screen saying "not ready yet" and such? I use macros that fire 3-4 abilities at the same time to save space on my controller, and as such, every time I shoot Heavy Shot, I get that sound. It's annoying. I don't want to turn off my sound...

You can turn off "system sounds", but it wont turn off the texts. Be warned though, turning off system sounds also turns off the ability to hear <se.2> messages that players use.