How to sort by last name, or first name?

we set up the form to enter for people to enter their first name and last name, but in the edit mode, we are not able to sort the data by last name nor first name, please assist

Hi Monica,

Thanks for reaching out to Jotform Support. I’m sorry you're having difficulties with this. Can you explain a bit more about the issue, so I can get a better idea of what's happening? Are you trying to sort the submissions in the submission table? Also, can you send us the link to your form for us to investigate this?

Once we hear back from you, we'll be able to help you with this.