I love how I can group this set up. I have Play 5 connected with the Sub. And 2 ONEs stereo paired, one on each side of the Play 5 and I love the coverage and sound this creates BUT I can only used them together “Grouped” is there a way I can make all 4 components operate as one Unit the same way as when they are grouped? I don’t want to separate the 2 “systems” at any moment. I like how crisp and deep that set up sounds.