This KB discusses what needs to be done to resolve the issue of the add button being greyed out in DirectManage Audit Manager when trying to add a new license for Direct Audit.
Centrify DirectManage Audit Manager on Windows
When attempting to add a new license in DirectManage Audit Manager, the 'Add..' button is greyed out. How do I add my new DirectAudit license?
To add a new license, the user must have the "Manage Licenses" permission on the DirectAudit Installation.
In DirectManage Audit Manager, right click on the Installation, go to Properties and select the Security Tab. Either add a user or modify an existing user in the list and give them at minimum the "Manage License" Permission. By selecting "Full Control", the Manage License Permission will also be selected.
If there is only the General tab in the properties of the Installation, it is very likely that either a license is not currently installed or that there was an Evaluation license has expired.
Start the DirectManage Audit Manager with the original user who set-up the DirectAudit Installation or a user that was given the "Manage Licenses" permission before the Evaluation license expired.
After the new license has been added, the security tab will then be visible. New users can then be added to the list and given the "Manage License" permission.