You can modify the title for your database in the Database Settings. Simple modify the Title field and click the Submit button.
You can also change the template that the database uses. This does not modify any data in the database, but rather changes what screens you see when you open the database.
Some of our templates implement document level security that offer the ability to control access to either editing of documents or the visibility of documents. For more details on each template view the relevant help page, but in all cases to enable document security, check the "Enable Document Level Security" box on this page.