If you are trying to turn off the OS-level pop-ups that appear when you are typing text (like the Caps Lock or dictation indicators), you can do this system-wide in the System pane of the application.
Go to the specific pane for the operation you want to run (for example, the pane or Diagnostics pane). TinkerTool System 6.98
Run a task such as a on your applications. If you are trying to turn off the