title: Ionic 4 how to navigate from tab page to non-tab page keeping tab?
body: <p>In Ionic 4, I have an application with a tabs ( 5 pages Home, Search, Map, Info, Tarif)
  From Search page i navigate to Detail page but i want to keeping the tab menu on Detail page.
  I don't know if is possible ?</p>
  
  <p>How do you configure the route ?
  This is my:
   <code>app-routing.module.ts</code></p>
  
  <pre><code>`const routes: Routes = [
    { path: '', loadChildren: './tabs/tabs.module#TabsPageModule' },
    { path: 'map', loadChildren: './map/map.module#MapPageModule' },
    { path: 'search', loadChildren: './search/search.module#SearchPageModule' },
    { path: 'station', loadChildren: './station/station.module#StationPageModule' },
    { path: 'info', loadChildren: './info/info.module#InfoPageModule' },
    { path: 'tarif', loadChildren: './tarif/tarif.module#TarifPageModule' }
  ];`
  
  and my `tabs.router.module.ts`
  
  `const routes: Routes = [
    {
      path: 'tabs',
      component: TabsPage,
      children: [
        {
          path: 'home',
          outlet: 'home',
          component: HomePage
        },
        {
          path: 'search',
          outlet: 'search',
          component: SearchPage
        },
        {
          path: 'map',
          outlet: 'map',
          component: MapPage
        },
        {
          path: 'info',
          outlet: 'info',
          component: InfoPage
        },
        {
          path: 'tarif',
          outlet: 'tarif',
          component: TarifPage
        }
      ]
    },
    {
      path: '',
      redirectTo: '/tabs/(home:home)',
      pathMatch: 'full'
    }
  ];`
  
  The station page must be a child page of Search page ?
  </code></pre>