Trigger Parameters for random Pick out of a selection?

What is the trigger parameters for selecting an event out of multiple randomly? I have variables set. Example, Playing audio file. Want to have trigger select out of a list of 5 to play one via random pick.

The function to produce a variable integer is “Random Integer” or “RandomInt” (in raw display) .
Then with a “If Then Else-If” with 5 entries you can have a different action for each random value.

Okay where is “Random Integer” or “RandomInt” located?> Where can I find this?