How do I display an Entity when the application starts?

You can provide TrueView with a list of explorable entities before the framework is started:

using Evolving.TrueView;

static class Program
{
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);

        Course course = new Course();
        Location location = new Location();
        MyApplication.ExplorableEntities.Add(course);
        MyApplication.ExplorableEntities.Add(location);

        Application.Run(MyApplication.Workbench);
    }
}