Update Username of a Recruiting Agent from Agent Info screen

Summary:

We have a requirement where we need to update the Username of a Recruiting Agent from the Agent Info screen. Currently, we don't see the option to update the username when we edit an Agent.

Also if this is possible, can it be updated to the username of an already existing user account [that has the same first name, last name and email id as the recruiting agent account]. So, the idea is to make this other user account as this Recruiting Agent's user account.

Content (please ensure you mask any confidential information):

Navigation: Setup and Maintenance -> Recruiting Agencies -> Select a Recruiting Agency -> Select a Recruiting Agent from the Agents section.