Nested Components within Components

I attached a video of my issue, but the quick rundown is the following: 

I have a nav item that's an icon with text next to it. 

I use this master nav item to build all instances of the vertical nav list.

Each is stacked on the other and they are all instances of that main master nav item.

These stacked nav items make up the larger overall side navigation for the application, which is a component itself.

If for some reason I need to add or update any item in that list, the overrides do not cascade to all the instances in files using that main side navigation component.

I did my best to explain that, but my video probably shows it much more clearly, especiall at the very end when adding the "Dog" to the nav (just for demonstration purposes).