MVVM Question

I have an application with a toolbar (Xamarin toolbar). I also want to add a bottom bar with a few buttons. I would then add views (MVVM) in the area between toolbar and bottom bar and use Xamarin forms labs MVVM framework to let users navigate views in the area between toolbar and bottom bar. Is that possible to do? Right now I have am navigating whole views and hence have to add bottom bar to each view.

Thanks