All of the tables/columns that were processed by the Data Explorer analysis, and are currently selected for the Graphics Environment. Entire tables and/or specific columns within a table can be deselected by highlighting them and clicking on the left arrow button, or dragged and dropped into the Available Tables and Columns window. The double left arrow button can be used to clear all Selected Tables and Columns, while the up and down arrows can change the order in which specific tables and/or columns are displayed.