SQL Wizard's Catalog Browser window provides an easy way to manage locations, tables and queries, including XDB Server system tables (providing your AuthID has suitable authority). You can open it by clicking any entry on the View menu of SQL Wizard or by clicking 
on the toolbar. The Catalog Browser has three tabs: Locations, Table and Query.
If you are a superuser, you can use the Locations tab to manage locations. A superuser can create, alter and drop locations, as well as set the currently active location. Other users can only view a list of available locations.
The Table tab displays the hierarchy of locations, AuthIDs, tables and columns. From this page you can create, open, alter and drop tables, as well as view table definitions and indexes, primary keys, foreign keys, views, aliases and synonyms. Note that only a superuser can edit system tables.
The Query tab displays all stored queries accessible to the current server under the Location, AuthID and Query hierarchy. From this page you can create, open, run and delete queries.