Is it possible to have multiple layouts? 

Is there an example I can look at to see how Renderer handles multiple layouts? Say my registration page and my login page have two different layouts.  How would I handle that? 

From this code: 

```
m.Use(render.Renderer(render.Options{
    Layout:    "layout",
}))
```

It seems that you can only have one layout per Renderer. Would I "use" multiple Renderers? 

Thanks.
