Cant find how to play random Sound

[excis]

Hi, I've searched around on the forum for a clue to play random sounds, What i want is Unit casts spell Play random sound from 1 to 3. But i cant find the random sound. Would be really happy if someone knows the answer =D

 

[Laiev]

set Sound[1] = SoundA.wav
set Sound[2] = SoundB.wav
set Sound[3] = SoundC.wav

Play Sound[Random Integer Between 1 and 3]

something like this

 

[excis]

set Sound[1] = SoundA.wav
set Sound[2] = SoundB.wav
set Sound[3] = SoundC.wav

Play Sound[Random Integer Between 1 and 3]

something like this

It's the Play Sound[Random Integer Between 1 and 3] i cant find

 

[HeX.16]

Make a variable. Sound(type sound) make sure array is ticked.