The column headers at the top of the document can be used to sort the tracks. To sort a track by a given column, left-click the corresponding header button. To reverse the sort, left-click the same button again. For example, to put the tracks in ascending order by name, left-click the Name button. To put the tracks in descending order by Name, left-click the Name button again.
The leftmost column's header button (captioned '#') has a special meaning for sorting: it causes the tracks to appear in the order in which they were created.
The column headers are also used for resizing columns.