[MissionLauncher(CategoryName = "Emails")]
public class EmailSenderMissions
{
    [Mission(Name = "Send email", 
        Description = "Send email to customer", 
        Queue = "emails")]
    public string SendEmail(int customerId, string displayName) => //...code;
}

// ASP.NET Core
services.AddHangfire(configuration =>
{
    ...
    configuration.UseMissionControl(
        new MissionControlOptions
        {
            RequireConfirmation = false, // disables confirmation popup
            HideCodeSnippet = false // hides code snippet and queue on missions page
        },
        typeof(TestSuite).Assembly);
});

// Or console application
GlobalConfiguration.Configuration.UseMissionControl(typeof(EmailSenderMissions).Assembly);