Once logged into your user portal navigate to the Settings Tab on the left side bar. Under Settings you will see Payment Types and under Payment Types you will see Remote Deposit. You should now see the following on the screen:
Under Scanner Permissions will be a list of your current user's. To edit a users access to deposit to stores, if they receive return notifications, and if they receive deposit emails.
Adding New Users
To add more users to this list go to Settings/ User Access. On the top right you will see an Add User option.