Login to the Delphix management application.
Click on the existing environment name you want to modify.
In the Details tab under Basic information, click the Plus icon next to Environment Users to add a user.
Enter the Username and Password for the OS user in that environment.
Select Add to save the new user.
To change the primary user for this environment, click the Pencil icon next to Environment users. Only the primary user will be used for environment discovery.
To delete a user, click the Trash icon next to their username.