Double output?

Hey ive had my Nari since ages now and always used it with stereomix to run my old analog speakers and nari at the same time. now i got the nommo pro but stereo mix wont lemme set it up for dual output like it did with my old aux one is there a way to get sound out from both nari and nommo? im really desperate since i dont always wanna unplug my nari or switch outputs constantly ugh...