Asp Net Mvc Routing without action on multiple Controllers

Question

My Asp Net MVC Application contains 4 Controllers: Home | Training | Diet | Configuration

 routes.MapRoute(
                name: "Default",
                url: "{action}/{id}",
                defaults: new { controller = "Home", action = "Authorize", id = UrlParameter.Optional }
            );

When I want to do a `RedirectToAction("Configurator","Configuration") it tells me the Route isnt found. Picture I tried adding different types of Routes but I never achieved the following scenario:
I just want the URL to doesnt contain the Controllername:
So instead of:
Before: https://localhost/Home/Login
After: https://localhost/Login
but also
Before: https://localhost/Diet/DailyData
After: https://localhost/DailyData

I have a lot of Methods in every Controller so I don't wanna set up for a Route for every Method. Is this possible and how?

Thank you already so much in advance!