This optional step helps building filter conditions for your query.

If you select a field and click on the "fetch" button, the program retrieves the distinct field values and present them to you, already delimited, in a text box. You can move the mouse on any value and then click on the appropriate arrow to use that value in an expression. The resulting condition can be edited manually, if necessary, and then added to the panel of conditions.

The final result is shown in the right bottom textbox, both as a logic expression or as SQL.