WRDB utilizes a new feature called the "Database Explorer". This is a form, generally only accessed by advanced users, that gives you a great deal of power to perform advanced operations on your project's tables and database. With great power comes great responsibility! All operations performed using the Database Explorer are irreversible (there is no Undo function). You should consider backing up your database before making significant modifications using File | Project Management | Backup to Archive.
The form consists of three tabs:
You can open the Database Explorer by clicking File | Explore Database..., clicking on the Explore Database toolbar button, or by clicking the Explore Database button on the WRDB Startup form.