Yeah, I think you're reading this wrong. `new-instance` is really only meant to be used by the demo, where there are multiple instances of rxApp on a single page. 

In the README I tried to explain how to add new menu items. Have you read through that? I ask because I want to make sure it's clear enough for when others try and understand what's going on.

Just a quick note though, by default, it populates the menu with `encoreNav`, even with `new-instance` true (see line 335 below).