button clicking code codes confirm create dates discount displays down drop entering expiration information load multiple submitting visually

How do we add multiple discount codes with different expiration dates? We are creating the codes, submitting the information, and then clicking the load button. After we do that, the drop down box only displays the last code we created. How can we create multiple codes, and be able to confirm that they have been created (visually)?

Please make sure that you are entering a different "name" for each discount.