Overwrite the controller

Hi,
I try to overwrite the "SettingController" with the view "Order". The overwritten controller is called. But View "return View (model)" is not found.

This is the route in the plug-in.
             routeBuilder.MapRoute ("CustomController", "Admin / Setting / Order",
                  new {controller = "KSSetting", action = "Order"});


Can anyone help?

Best regards