Two Powernode 331 for one stereo setup

Is it possible to configure two powernode 331 for one stereo setup?`

What I want to achieve is to have 2 speaker on left side and 2 speakers on right side. And have one powernode for each side. 

Second question, if I connect a sub to one of the powernode, will that sub be work for both or only for right or left side depending on what amp is connected to`?