// Case 3: Displays selected Routines.
        static void DisplayEditedRoutine()
        {
            Console.Clear();
            Console.WriteLine("-----------------------------------");
            Console.WriteLine("        Your Edited Workout        ");
            Console.WriteLine("-----------------------------------");

            _editedTrainingRoutine.ForEach((routine) => Console.WriteLine(routine));

            UserScreen.ClosingCase();
        }
        // Case 1: Displays Full Routine.
        static void DisplayFullRoutine(List <TrainingRoutine> _output)
        {
            Console.Clear();
            Console.WriteLine("-----------------------------------");
            Console.WriteLine("   View Full Race Training Plan    ");
            Console.WriteLine("-----------------------------------");
            foreach (var item in _output)
            {
                Console.WriteLine("Your Week " + item.Week + ", Day " + item.Day + ", Workout is " + item.Workout);
            }

            UserScreen.ClosingCase();
        }