The RoutingWidget provides several actions as push buttons. Create a QToolBar on top of the widget (on top of RoutingWidget, no main toolbar of marble_part / QMainWindow) with the following actions:

• Open Route
• Save Route
• (separator)
• Add Via
• Reverse Route
• Clear Route
• (separator)
• Settings

Use the icons of the existing buttons and remove them. Make sure the actions are properly connected to the slots and work as before.