This feature is available in all editions.
Click on any column name to sort by that column. Note that the sort order toggles between ascending and descending order with each click.
By default, work items are sorted sequentially with newer items shown at the bottom.
When sorting in a tree view, the items sort by level — the higher level items are sorted first and the lower level items are sorted within their grouping.
Resetting the Default Sort Order
Click the Reset Sort icon to revert back to the default sort order.
To use Lifecycle's Ranking feature, the grid must be set to the default sort order. See Ranking Work Items for details.