Hi Alexis
As far as sending system sounds to wherever you want, that is in the dsp software, go to the main dsp page and click the"gear" button next to the i at the top. Then in the output routing settings, whichever output you want the system sounds to go through, set that to mix 1/2 , (I have a feeling that that IS fixed but haven’t been into it) you’ll have to set the others to something else otherwise it’ll come out of all the outputs set to mix 1/2, it is a bit backwards but it works so,
Best Regards
Dave