Razer audio mixer questions, help appreciated

Hi, was looking into a proper all in one mixer for my 2 pc rig and I already have a lot of razer equipment so I figured if I somehow make it work it would be a nice extra addition. So my question is i know it says dual PC works but will it work in the way I need ? I basically need audio from my gaming PC going to stream PC and also be able to hear audio from my streaming pc on the mixer. Is this possible with this equipment? Would like to simplify my current setup.