
Each column header can be sorted in either ascending or descending order by clicking on it.
Columns can be resized by holding down the mouse at the column separator and dragging this left or right.
Columns can also be moved left or right by holding down the mouse and dragging it to its preferred position in the header:

Red down/up arrows are displayed at each point where the column is permitted to be repositioned.
If a column is not required to be displayed, this can be removed by dragging the column above the grid toolbar and releasing.
If the column has a footer which has calculated a value for the column, the column header will have a right mouse click context menu when clicked:

This allows the calculation in the footer to be altered.