Cue Mix

I am ruing Studiolive 24.4.2 Interface which had 10 Aux out on the back.  I want to set up Cue Mix in Studio one 4. But, when I go to outputs in settings on studio one 4, it does Not show the 10 Aux out but it only shows outputs 1-24 which are being used as Inputs.  How do I fix this?