Soundboard
1- Launch soundboard (from finder – applications)
2- You will see a screen full of squares with numbers or letters on each on relates to the corresponding key on the keyboard.
3- Drag pre-recorded items in to a square – when broadcasting you can then just press the corresponding square on the keyboard and it will play that selection.
4- Choose the Output option you require, this will probably be USB Audio Codec. (Your mixing desk!)