This dialog appears when you click Table > Table Properties in the Business Cube - Join Editor window. It helps you to configure which tables will be shown and which ones will be hidden. See the dialog.
The following are details about options in the dialog:
Show Tables
Lists the tables that have been added and shown in the business cube.
Hide Tables
Lists the tables that are not shown in the business cube.
OK
Applies any changes and closes the dialog.
Cancel
Closes the dialog, leaving any changes unsaved.