That is not a stock behavior or option; your client is welcome to modify the Control Panel to their hearts content, but modifications are not supported at UBBCentral and you may be asked to revert your changes when seeking official support.
The contents of the landing page in the Control Panel can be located in /admin/dashboard.php and /templates/default/admin/dashboard.tmpl
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.
