I appreciate the update, @RWRobbins.

I'll be happy to help you gain access to add and modify users as a secondary admin in QuickBooks Desktop Enterprise (QBDE).

In QBDE, the admin can grant specific roles and restrict access even if you've been assigned as a secondary admin or payroll manager. That said, I suggest reaching out to your primary admin to verify if you have access to manage users. 

Please let your primary admin refer to these steps below:

1. Go to the Company menu and select Users.
2. Click Set Up Users and Roles.
3. Enter the admin password and click OK.
4. In the Role List tab, select the a role and click Edit.
5. In the Area and Activities, you'll be able to customize a role in a more detailed manner. Choose Employee & Payroll if you'd want an access to add or edit users.
6. In the Area Access Level section, choose a specific level.
7. Select OK.

For detailed information about Area and Activities and Area Access Level, please refer to this article: Areas, Activities and Access Levels.

Additionally, if you'll encounter issues with login and restrictions, you can refer to this article to troubleshoot: QuickBooks Desktop Users and Restrictions.

Please don't hesitate to return to this thread if you've got additional questions about your secondary admin access in QBDE. I'll be more than happy to answer them. Take care!