You can use the "Employer Information" section to enter your current/main employer details and utilize the "Other Information" section to indicate your other or prior employer for the same tax year. "Other Information" is a free text box that allows you to add in any relevant information that did not fit elsewhere.
If you have any questions or need any support at all, you are welcome to reach out to help@greenbacktaxservices.com or start a chat on our website!