For every column header of your TABLE|IT table you can access a set of features. Right click on the desired column header to open the context menu:
(1) Sort Ascending
sorts in an ascending order from a to z or from small to big
(2) Sort Descending
sorts in a descending order from z to a or from big to small
(3) Group by this column
groups the data records by the content of the chosen column
(4) Group panel
hides or displays the group panel
(5) Hide column
hides the column whose context menu you opened
In order to display the column again open the context menu of a different column and click on Column Chooser:
(6) Column chooser
opens the window Column Chooser where the hidden columns are displayed, drag & drop the columns where you want to have them
(7) Search panel
displays or hides a row for the comfortable search for data records
(8) Filter row
displays or hides a filter row for the individual column, with it you can decide which data records you want to see
(9) Footer
displays or hides a footer for the entire table