Does anyone know how to set a certain key combination to type a symbol. In my line of work, I commonly write up and down arrows to describe things. I am trying to find a way to use a key combo like "control u" to type an upward arrow and "control d" to type a downward arrow. I figured out how to do this in Word, but I want to make this key combo global so that it works in any program I am typing in. Any ideas?