Hi,

The registration form is only demonstration how the process can go through. Though it can be modified with your own steps and the code:

setTimeout(function()
{
    // Hide the description title
    $(".login-page .login-header .description").slideUp();
    
    // Hide the register form (steps)
    neonRegister.$steps.slideUp('normal', function()
    {
        // Remove loging-in state
        $(".login-page").removeClass('logging-in');
        
        // Now we show the success message
        $(".form-register-success").slideDown('normal');
        
        // You can use the data returned from response variable
    });
    
}, 1000);

Only shows the success message:

https://d.pr/v/4sXaq3

You can assign this code in a function and call it right after the registration is completed:

function showSuccessMessage() {
    // Hide the description title
    $(".login-page .login-header .description").slideUp();
    
    // Hide the register form (steps)
    neonRegister.$steps.slideUp('normal', function()
    {
        // Remove logging-in state
        $(".login-page").removeClass('logging-in');
        
        // Now we show the success message
        $(".form-register-success").slideDown('normal');
        
        // Any other task here...
    });
}

It all depends how you setup the registration process. The sample code is in neon-register.js so you can edit or remove  parts of the code that you don't need.