I’m not sure I understand what you mean when you say that a tab cannot be created with a details layout. Any tab can be created with a details layout. That then allows you to add an inline list (that is set to the maps layout) within that details layout screen. This will prevent the All/Favorites tabs from showing at the top of the screen. The only downside of an inline list set to the maps layout is that you have to pick either the map or the list view. The inline list version of the the map will not let you switch between map and list view with a button. There are ways around this though and I do have an example in Food/Activities tab of this app.