quantize audio

I have Cubase LE AI Elements 8 (with ur44)
I can’t for the life of me quantize audio (quantize midi no probs)
Is this feature not allowed in this version? I’ve checked the help and it doesn’t mention that its not.
So whats wrong?

PS I used to use nuendo years ago, but have used sonar the last few years but decided to give cubase another look again to see if Im wanting to switch