On BitComet you have one main window, and a bottom window with a seven-branch tree (Summary, Trackers, Files, Peers, Chat, Logs, Statistics).
With the main window, no problem.
As with the bottom additional window, you cannot change the column sorting order: items are always displayed according to the 1st column value. I want to be able to do the same thing as with the main window; I want to be able to click on column 2 or 5 or 13 to change the displayed order of the items.
Check the screen-capture.