Please go to following file, It contains OrderStatus Enum.
/// Represents an order status enumeration
public enum OrderStatus : int
Pending = 10,
Processing = 20,
Complete = 30,
Cancelled = 40
You can add your status here, note that numeric/integer value here will be stored in database and on site you will see status you've set against it here in ENUM file.
Hope this helps you in setting up your own Order status.
The same we can set payment status ans shipping status also.[/quote]
I successfully added the extra order status.
I also want to know how to add a color button to it?