HELP with my new Saffire PRO 24 !! How to route outs !!

[Scottxx]

Sorry for the dumb question but I need help. I still haven't bought my monitors. I'm using my audio hifi. I need to route the L and R channel to the same connector because I'm using the small connector that you use in the standard audio line out. So I need to connect it to the first line out? But how to set it to stereo and not splited between line out 1 and 2 ?

Thank you!