A bottom bar persists across desired routes

Is that possible to have a BottomBar that persists (not slides etc. just stays there) across the desired routes?

Rather than naming the bars as Nabbar and Tabbar, I will name them TopBar and Bottombar as Navbar or Tabbar according to their functionality assigned.

TopBars as Navbars can be specific to some route and may change or even not exist in some specific routes (i.e. hides), and that is useful.
1. **Some times a general, common BottomBar is required across some specific or all routes and again may hide in some other routes, as well, like Tabbars do. A TopBar, maybe as a Navbar, will be required to show in some routes again as it can currently do. Is that possible to achieve with `react-native-redux-router`?**
2. Even some of the routes can contain a secondary bar (Top or Bottom) as a Tabbar in addition to persisting bar (Top or Bottom again) to have desired control over sub-routes of one or more of the top level routes. This actually what I need to achieve.

As I review different modules written for navigation purposes, I cannot see a full fledged module that can achieve these and run both on iOS and Android. `react-native-redux-router`is by now is the most complete I have faced with, but this last thing I do not know whether it can achieve or not.