I was always infuriated by the impossibility of dragging the panel with the program in the taskbar to another place.
Recently discovered a small, but very useful program - TaskBar Shuffle .
What gives: ')
drag panels as you like (like tabs in the browser)
close the program by pressing the middle mouse button on its panel in the taskbar
group similar windows are not high (the usual behavior of windows), and in breadth! i.e. panels of similar programs appear side by side, not collapsed into one button.
The program can remove itself from the tray and in this case is not noticeable at all.